Curriculum Vitae


[Page 1 of Oka's CV]

List of Publications

  1. Microwave spectra of formaldehyde-d1, -d2, H. Hirakawa, T. Oka, and K. Shimoda, J. Phys. Soc. Jpn. 11, 1207 (1956).
  2. l-type doubling spectra of HCN and DCN, H. Hirakawa, T. Oka, and K. Shimoda, J. Phys. Soc .Jpn. 11, 1208 (1956).
  3. Dependence of quadrupole coupling constant on the vibrational state in ICN molecule, T. Oka, H. Hirakawa, and A. Miyahara, J. Phys. Soc. Jpn. 12, 39–42 (1957).
  4. Microwave spectrum of BrCN and dependence of quadrupole coupling constant on the vibrational state, T. Oka and H. Hirakawa, J. Phys. Soc. Jpn. 12, 820–823 (1957).
  5. Microwave spectrum of hydrazine, T. Kojima, H. Hirakawa, and T. Oka, J. Phys. Soc. Jpn. 13, 321 (1958).
  6. Microwave spectrum, structure, dipole moment, and quadrupole coupling constant of propargyl chloride, E. Hirota, T. Oka, and Y. Morino, J. Chem. Phys. 28, 444–445 (1958).
  7. Microwave spectrum of ethyl iodide, T. Kasuya and T. Oka, J. Phys. Soc. Jpn. 14, 980–981 (1959).
  8. Microwave spectrum of ethyl iodide, I., T. Kasuya and T. Oka, J. Phys. Soc. Jpn. 15, 296–303 (1960).
  9. Microwave Zeeman effect of formaldehyde, K. Kondo, H. Hirakawa, A. Miyahara, T. Oka, and K. Shimoda, J. Phys. Soc. Jpn. 15, 303–306 (1960).
  10. Stark-Zeeman effects on asymmetric top molecules. Formaldehyde H2CO, K. Kondo and T. Oka, J. Phys. Soc. Jpn. 15, 307–314 (1960).
  11. Microwave spectrum of formaldehyde, I. K-type doubling spectra, T. Oka, H. Hirakawa, and K. Shimoda, J. Phys. Soc. Jpn. 15, 2265–2273 (1960).
  12. Microwave spectrum of formaldehyde, II. Molecular structure in the ground state, T. Oka, J. Phys. Soc. Jpn. 15, 2274–2279 (1960).
  13. Microwave spectrum of formaldehyde, III. Vibration-rotation interaction, T. Oka and Y. Morino, J. Phys. Soc. Jpn. 16, 1235–1242 (1961).
  14. Calculation of inertia defect. Part I. General formulation, T. Oka and Y. Morino, J. Mol. Spectrosc. 6, 472–482 (1961).
  15. Calculation of inertia defect. Part II. Non-linear symmetric XY2 molecules, T. Oka and Y. Morino, J. Mol. Spectrosc. 8, 9–21 (1962).
  16. Analysis of the microwave spectrum of hydrogen selenide, T. Oka and Y. Morino, J. Mol. Spectrosc. 8, 300–314 (1962).
  17. Internuclear distance parameters, Y. Morino, K. Kuchitsu, and T. Oka, J. Chem. Phys. 36, 1108–1109 (1962).
  18. Microwave spectrum of acetonitrile-d3, CD3CN, C. Matsumura, E. Hirota, T. Oka, and Y. Morino, J. Mol. Spectrosc. 9, 366–380 (1962).
  19. Millimeter wave spectrum of formaldehyde, K. Takagai and T. Oka, J. Phys. Soc. Jpn. 18, 1174–1180 (1963).
  20. Inertia defect. Part III. Inertia defect and planarity of four-atomic molecules, T. Oka and Y. Morino, J. Mol. Spectrosc. 11, 349–367 (1963).
  21. Microwave spectrum of s-trioxane, T. Oka, K. Tsuchiya, S. Iwata, and Y. Morino, Bull. Chem. Soc. Jpn. 37, 4–7 (1964).
  22. Effect of vibration and rotation on the internuclear distance, M. Toyama, T. Oka, and Y. Morino, J. Mol. Spectrosc. 13, 193–213 (1964).
  23. Microwave spectrum of formaldehyde in vibrationally excited states, T. Oka, K. Takagi, and Y. Morino, J. Mol. Spectrosc. 14, 27–52 (1964).
  24. Calculation of inertia defect. Part IV. Ethylene-type molecules, K. Kuchitsu, T. Oka, and Y. Morino, J. Mol. Spectrosc. 15, 51–67 (1965).
  25. Observation of ΔJ = 3 “forbidden” transition in ethyl iodide by the use of double resonance, T. Oka, J. Chem. Phys. 45, 752–753 (1966).
  26. Observation of preferred collisional transitions in ethylene oxide by the use of microwave double resonance, T. Oka, J. Chem. Phys. 45, 754–755 (1966).
  27. Microwave studies of collision-induced transitions between rotational levels. II. Observations in H2CO, HCN, and H2CCO, T. Oka, J. Chem. Phys. 47, 13–26 (1967).
  28. Vibration-rotation interaction in symmetric-top molecules and the splitting between A1 and A2 levels, T. Oka, J. Chem. Phys. 47, 5410–5426 (1967).
  29. Microwave studies of collision-induced transitions between rotational levels. III. Observation of preferred quadrupole-type transitions in NH3-He collision, T. Oka, J. Chem. Phys. 47, 4852–4853 (1967).
  30. Microwave studies of collision-induced transitions between rotational levels. IV. Steady-state measurements in NH3, T. Oka, J. Chem. Phys. 48, 4919–4928 (1968).
  31. Microwave studies of collision-induced transitions between rotational levels. V. “Selection rules” in NH3–rare-gas collisions, T. Oka, J. Chem. Phys. 49, 3135–3145 (1968).
  32. Microwave triple resonance; direct observation of ΔJ = 2 collision-induced transitions, R. M. Lees and T. Oka, J. Chem. Phys. 49, 4234–4235 (1968).
  33. Microwave studies of collision-induced transitions between rotational levels. VI. CH3OH and CH3NH2, R. M. Lees and T. Oka, J. Chem. Phys. 51, 3027–3038 (1969).
  34. Quadratic ζ-sum rules in symmetric top molecules, T. Oka, J. Mol. Spectrosc. 29, 84–92 (1969).
  35. High-power microwave double-resonance experiments,  T. Oka, Can. J. Phys. 47, 2343–2350 (1969).
  36. On the initial excitation temperature of interstellar H2CO molecules, T. Oka, Astrophys. J. 160, L69–L71 (1970).
  37. Microwave double-photon transitions in CD3CN and PF3, T. Oka and T. Shimizu, Phys. Rev. A 2, 587–593 (1970).
  38. Infrared-microwave double resonance of NH3 using an N2O laser, T. Shimizu and T. Oka, J. Chem. Phys. 53, 2536–2537 (1970).
  39. Infrared-microwave double resonance of NH3 using an N2O laser, T. Shimizu and T. Oka, Phys. Rev. A 2, 1177–1181 (1970).
  40. Microwave studies of collision-induced transitions between rotational levels. VII. Collisions between NH3 and nonpolar molecules, P. W. Daly and T. Oka, J. Chem. Phys. 53, 3272–3278 (1970).
  41. Possible rotational equilibration of interstellar ammonia by radiative Δk = ± 3 transitions, T. Oka, F. O. Shimizu, T. Shimizu, and J. K. G. Watson, Astrophys. J. 165, L15–L19 (1971).
  42. Pressure broadening measurement of the ν2 [qR_(0,0)] transition of 15NH3 by a CO2 laser, T. Shimizu, F. O. Shimizu, R. Turner, and T. Oka, J. Chem. Phys. 55, 2822–2826 (1971).
  43. Observation of infrared-microwave two-photon transitions in NH3, T. Oka and T. Shimizu, Appl. Phys. Lett. 19, 88–90 (1971).
  44. Recent experimental and theoretical investigations on infrared and microwave molecular spectra of astronomical interest, T. Oka, Mem. Soc. R. Sci. Liege III, 37–55 (1972).
  45. Observation of Δk = ± 3 transitions in NH3-H2 collisions, A. R. Fabris and T. Oka, J. Chem. Phys. 56, 3168–3169 (1972).
  46. Observation of the inverse Lamb dip for infrared-microwave two-photon transitions, S. M. Freund and T. Oka, Appl. Phys. Lett. 21, 60–62 (1972).
  47. Selective predissociation as a possible mechanism for the population inversion of interstellar H2O, T. Oka, in “Molecules in the Galactic Environment” (M. A. Gordon and L. E. Snyder, Eds.), pp. 258–266, Wiley-Interscience, New York, 1973.
  48. Microwave-infrared double resonance of CH4 using 3.39μ He-Ne laser line, R. F. Curl, Jr. and T. Oka, J. Chem. Phys. 58, 4908–4911 (1973).
  49. The observation of a pure rotational Q-branch transition of methane by infrared-radio frequency double resonance, R. F. Curl, T. Oka, and D. S. Smith, J. Mol. Spectrosc. 46, 518–520 (1973).
  50. Infrared-infrared double resonance experiments using a two-photon technique, S. M. Freund, J. W. C. Johns, A. R. W. McKellar, and T. Oka, J. Chem. Phys. 59, 3445–3453 (1973).
  51. ΔK = 2 transitions in H2CO and D2CO, F. Y. Chu, S. M. Freund, J. W. C. Johns, and T. Oka, J. Mol. Spectrosc. 48, 328–335 (1973).
  52. The parity of rotational levels, T. Oka, J. Mol. Spectrosc. 48, 503–507 (1973).
  53. Microwave spectrum of Δk = ± 3 transitions of PH3, F. Y. Chu and T. Oka, J. Mol. Spectrosc. 48, 612–613 (1973).
  54. Collision-induced transitions between rotational levels, T. Oka, Adv. At. Mol. Phys. 9, 127–206 (1973).
  55. Laser Stark spectroscopy in the 10μm region: The ν3 bands of CH3F, S. M. Freund, G. Duxbury, M. Römheld, J. T. Tiedje, and T. Oka, J. Mol. Spectrosc. 52, 38–57 (1974).
  56. “Forbidden” rotational spectra of phosphine and arsine, F. Y. Chu and T. Oka, J. Chem. Phys. 60, 4612–4618 (1974).
  57. Infrared-microwave (radiofrequency) two-photon spectroscopy, T. Oka, in “Laser Spectroscopy” (R. G. Brewer and A. Mooradian, Eds.), pp. 413–431, Plenum, New York, 1974.
  58. Detection of the 10.464-GHz transition of interstellar thioformaldehyde, L. H. Doherty, J. M. MacLeod, and T. Oka, Astrophys. J. 192, L157–L160 (1974).
  59. Collision-induced Lamb dips in laser Stark spectroscopy, J. W. C. Johns, A. R. W. McKellar, T. Oka, and M. Römheld, J. Chem. Phys. 62, 1488–1496 (1975).
  60. Laser absorption spectroscopy using a molecular beam,  F. Y. Chu and T. Oka, J. Appl. Phys. 46, 1204–1205 (1975).
  61. Infrared–radio-frequency double resonance observations of ΔJ = 0 ‘forbidden’ rotational transitions of SiH4, W. A. Kreiner and T. Oka, Can. J. Phys. 53, 2000–2006 (1975).
  62. Infrared–radio-frequency two-photon and multiphoton Lamb dips for CH3F, S. M. Freund, M. Römheld and T. Oka, Phys. Rev. Lett. 35, 1497–1500 (1975).
  63. Infrared-microwave two-photon spectroscopy: The ν2 band of NH3, S. M. Freund and T. Oka, Phys. Rev. A 13, 2178–2190 (1976).
  64. Detection of the heavy interstellar molecule cyanodiacetylene, L. W. Avery, N. W. Broten, J. M. MacLeod, T. Oka, and H. W. Kroto, Astrophys. J. 205, L173–L175 (1976).
  65. Δk = ± 3 “forbidden” infrared transitions in the ν2-band of NH3, D. Laughton, S. M. Freund, and T. Oka, J. Mol. Spectrosc. 62, 263–270 (1976).
  66. Evidence for weak maser action in interstellar cyanodiacetylene, N. W. Broten, J. M. MacLeod, T. Oka, L. W. Avery, J. W. Brooks, R. X. McGee, and L. M. Newton, Astrophys. J. 209, L143–L147 (1976).
  67. “Forbidden” rotational transitions, T. Oka, in “Molecular Spectroscopy: Modern Research, II” (K. Narahari Rao, Ed.), pp. 229–253, Academic Press, New York, 1976.
  68. Infrared and radiofrequency spectroscopy in the laser cavity, T. Oka, in “Frontiers in Laser Spectroscopy, II” (Proceedings, Summer School of Theoretical Physics, Les Houches) (R. Balian, S. Haroche, and S. Lieberman, Eds.), pp. 531–569, North-Holland, Amsterdam, 1977.
  69. Direct observation of velocity-tuned multiphoton processes in the laser cavity, J. Reid and T. Oka, Phys. Rev. Lett. 38, 67–70 (1977).
  70. Doppler-free optical double-resonance Stark spectroscopy using modulation sidebands, B. J. Orr and T. Oka, Appl. Phys. Lett. 30, 468–470 (1977).
  71. Infrared-microwave double resonance spectroscopy of GeH4, W. A. Kreiner, U. Andresen, and T. Oka, J. Chem. Phys. 66, 4662–4665 (1977).
  72. Measurement of the centrifugal-distortion dipole moment of GeH4 using a CO2 laser, W. A. Kreiner, B. J. Orr, U. Andresen, and T. Oka, Phys. Rev. A 15, 2298–2304 (1977). (erratum)
  73. Determination of electric dipole moment for the ν2 vibrational state of 15NH3 by infrared-infrared double resonances, B. J. Orr and T. Oka, J. Mol. Spectrosc. 66, 302–313 (1977).
  74. Infrared spectroscopy of short-lived molecules: Observation of the ν2 fundamental of HCO by laser electric resonance, B. M. Landsberg, A. J. Merer, and T. Oka, J. Mol. Spectrosc. 67, 459–475 (1977).
  75. Observation of inverted infrared Lamb dips in separated optical isomers, E. Arimondo, P. Glorieux, and T. Oka, Opt. Commun. 23, 369–372 (1977).
  76. RF spectroscopy in a laser cavity: “Pure” nuclear quadrupole spectra, E. Arimondo, P. Glorieux, and T. Oka, in “Laser Spectroscopy III” (J. L. Hall and J. L. Carlsten, Eds.), pp. 287–298, Springer-Verlag, New York, 1977.
  77. Observation of inverted infrared Lamb dips in separated optical isomers, E. Arimondo, P. Glorieux, and T. Oka, in “Laser Spectroscopy III” (J. L. Hall and J. L. Carlsten, Eds.), pp. 444–445, Springer-Verlag, New York, 1977.
  78. The detection of cyanohexatriyne, H(CC)3CN, in Heiles’s Cloud 2, H. W. Kroto, C. Kirby, D. R. M. Walton, L. W. Avery, N. W. Broten, J. M. MacLeod, and T. Oka, Astrophys. J. 219, L133–L137 (1978).
  79. Radio-frequency spectroscopy inside a laser cavity; “pure” nuclear quadrupole resonance of gaseous CH3I, E. Arimondo, P. Glorieux, and T. Oka, Phys. Rev. A 17, 1375–1393 (1978).
  80. Observation of second-order Stark effects in silane, SiH4, W. A. Kreiner, T. Oka, and A. G. Robiette, J. Chem. Phys. 68, 3236–3243 (1978).
  81. The detection of HC9N in interstellar space, N. W. Broten, T. Oka, L. W. Avery, J. M. MacLeod, and H. W. Kroto, Astrophys. J. 223, L105–L107 (1978).
  82. The prediction of the rotational constants of polyacetylene compounds H–(CC)n–CN, T. Oka, J. Mol. Spectrosc. 72, 172–174 (1978).
  83. A study of the electric quadrupole fundamental band of D2 using an infrared difference frequency laser system, A. R. W. McKellar and T. Oka, Can. J. Phys. 56, 1315–1320 (1978).
  84. Cyanodiacetylene (HC5N) in Sagittarius B2, L. W. Avery, T. Oka, N. W. Broten, and J. M. MacLeod, Astrophys. J. 231, 48–54 (1979).
  85. A study of the K = 3n A1-A2 centrifugal splitting in the 3ν2 and 4ν2 states of PH3 using a difference-frequency laser system, P. Bernard and T. Oka, J. Mol. Spectrosc. 75, 181–196 (1979).
  86. Transition dipole moments of NH3 in excited vibrational states determined by laser Stark spectroscopy, M. Takami, H. Jones, and T. Oka, J. Chem. Phys. 70, 3557–3558 (1979).
  87. Deflection of a Na beam by resonant standing-wave radiation, E. Arimondo, H. Lew, and T. Oka, Phys. Rev. Lett. 43, 753–757 (1979).
  88. Rotational dependence of the dipole moment of CH3D, J. K. G. Watson, M. Takami, and T. Oka, J. Chem. Phys. 70, 5376–5380 (1979).
  89. Failure to confirm the existence of interstellar methylamine-D (CH3NHD), J. M. MacLeod, L. W. Avery, N. W. Broten, and T. Oka, Astrophys. J. 231, 401–403 (1979).
  90. Deflection of a Na beam by resonant standing wave radiation, E. Arimondo, H. Lew, and T. Oka, in “Laser Spectroscopy IV” (H. Walther and K. W. Rothe, Eds.), pp. 56–65, Springer-Verlag, New York, 1979.
  91. Molecular spectroscopy using infrared lasers; A study of radiative and collisional processes, T. Oka, in “Horizons of Quantum Chemistry” (K. Fukui and B. Pullman, Eds.), pp. 151–167, Reidel, Dordrecht, 1980.
  92. Doppler-free optical double resonance spectroscopy using a single-frequency laser and modulation sidebands, B. J. Orr and T. Oka, Appl. Phys. 21, 293–306 (1980).
  93. Radiofrequency spectroscopy inside a laser cavity: Nuclear quadrupole resonance and A1-A2 splitting of CH3Br, E. Arimondo, J. G. Baker, P. Glorieux, and T. Oka, J. Mol. Spectrosc. 82, 54–72 (1980).
  94. The hydrogen molecule as a collision partner, T. Oka, in “Interstellar Molecules” (B. H. Andrew, Ed.), pp. 221–229, Reidel, Dordrecht, 1980.
  95. Observation of the infrared spectrum of H3+, T. Oka, Phys. Rev. Lett. 45, 531–534 (1980).
  96. Vibrationally induced nuclear quadrupole coupling in tetrahedral and octahedral molecules, J. T. Hougen and T. Oka, J. Chem. Phys. 74, 1830–1839 (1981).
  97. The infrared spectrum of H3+, T. Oka, in “Laser Spectroscopy V” (A. R. W. McKellar, T. Oka, and B. P. Stoicheff, Eds.), pp. 320–323, Springer-Verlag, New York, 1981.
  98. Radiofrequency spectroscopy of AsH3 inside a CO2-NO2 laser cavity, F. Scappini and T. Oka, J. Mol. Spectrosc. 85, 390–398 (1981).
  99. A search for interstellar H3+, T. Oka, Philos. Trans. R. Soc. London, Ser. A 303, 543–549 (1981).
  100. Laser stark spectroscopy of methyl cyanide in the 10-μm region: Analysis of the ν4 and ν7 bands, and the ν7, 3ν81 interaction, S. A. Rackley, R. J. Butcher, M. Römheld, S. M. Freund, and T. Oka, J. Mol. Spectrosc. 92, 203–217 (1982).
  101. On the n-dependence of the reaction rate for C+ + Cn ! C+n+1 in interstellar space, K. F. Freed, T. Oka, and H. Suzuki, Astrophys. J. 263, 718–722 (1982).
  102. Study of microwave transitions in intracavity absorbers with the use of off-resonant response of infrared lasers, E. Arimondo and T. Oka, Phys. Rev. A 26, 1494–1504 (1982).
  103. Intracavity infrared-microwave double-resonance spectroscopy, T. Oka, Philos. Trans. R. Soc. London, Ser. A 307, 591–601 (1982).
  104. Microwave studies of collision-induced transitions between rotational levels. VIII. Collisions between NH3 and polar molecules, A. R. Fabris and T. Oka, J. Chem. Phys. 78, 3462–3466 (1983).
  105. The H3+ ion, T. Oka, in “Molecular Ions: Spectroscopy, Structure, and Chemistry” (T. A. Miller and V. E. Bondybey, Eds.), pp. 73–90, North Holland, New York, 1983.
  106. Inverse Lamb dip spectroscopy using microwave modulation sidebands of CO2 laser lines, G. Magerl, J. M. Frye, W. A. Kreiner, and T. Oka, Appl. Phys. Lett. 42, 656–658 (1983).
  107. Doppler shift and ion mobility measurements of ArH+ in a He dc glow discharge by infrared laser spectroscopy, N. N. Haese, F.-S. Pan, and T. Oka, Phys. Rev. Lett. 50, 1575–1578 (1983).
  108. Collision-induced resonances in radio-frequency spectroscopy inside the cavity of an infrared laser, P. Glorieux, E. Arimondo, and T. Oka, J. Phys. Chem. 87, 2133–2141 (1983).
  109. Doppler shift ion mobility measurements of ArH+ in a He dc glow discharge by diode laser spectroscopy, N. N. Haese and T. Oka, Proc. SPIE (Tunable Diode Laser Dev. Spectrosc. Appl.) 438, 165–169 (1983).
  110. Lamb dip spectroscopy using tunable laser sidebands, G. Magerl, J. M. Frye, W. A. Kreiner, and T. Oka, in “Laser Spectroscopy VI” (H. P. Weber and W. Luthy, Eds.), pp. 430–431, Springer-Verlag, New York, 1983.
  111. Infrared studies of molecular ions. I. The ν3 band of NH4+, M. W. Crofton and T. Oka, J. Chem. Phys. 79, 3157–3158 (1983).
  112. Observation of the ν2 (1- ←  0+) inversion mode band in H3O+ by high resolution infrared spectroscopy, N. N. Haese and T. Oka, J. Chem. Phys. 80, 572–573 (1984).
  113. Observation of the infrared ν2 (CH stretch) of protonated hydrogen cyanide, HCNH+, R. S. Altman, M. W. Crofton, and T. Oka, J. Chem. Phys. 80, 3911–3912 (1984).
  114. Radiofrequency-infrared double-resonance spectroscopy of OsO4 using microwave modulation sidebands on CO2 laser lines, F. Scappini, W. A. Kreiner, J. M. Frye, and T. Oka, J. Mol. Spectrosc. 106, 436–440 (1984).
  115. Sub-Doppler spectroscopy of the ν2 band of NH3 using microwave modulation sidebands of CO2 laser lines, G. Magerl, W. Schupita, J. M. Frye, W. A. Kreiner, and T. Oka, J. Mol. Spectrosc. 107, 72–83 (1984).
  116. High resolution infrared spectroscopy of the ν1 (NH stretch) and ν2 (CH stretch) bands of HCNH+, R. S. Altman, M. W. Crofton, and T. Oka, J. Chem. Phys. 81, 4255–4258 (1984).
  117. The infrared spectrum of the ν2 fundamental band of the H3+ molecular ion, J. K. G. Watson, S. C. Foster, A. R. W. McKellar, P. Bernath, T. Amano, F. S. Pan, M. W. Crofton, R. S. Altman, and T. Oka, Can. J. Phys. 62, 1875–1885 (1984).
  118. Experimental determination of the ground-state inversion splitting in H3O+, D.-J. Liu and T. Oka, Phys. Rev. Lett. 54, 1787–1789 (1985).
  119. Infrared spectrum of the ν2 vibration-inversion band of H3O+, D.-J. Liu, N. N. Haese, and T. Oka, J. Chem. Phys. 82, 5368–5372 (1985).
  120. Infrared spectrum of the fundamental vibration-rotation band of 3Σ- OH+, M. W. Crofton, R. S. Altman, M.-F. Jagod, and T. Oka, J. Phys. Chem. 89, 3614–3617 (1985).
  121. Observation of the infrared spectrum of methyl cation CH3+, M. W. Crofton, W. A. Kreiner, M.-F. Jagod, B. D. Rehfuss, and T. Oka, J. Chem. Phys. 83, 3702–3703 (1985).
  122. Observation and analysis of the ν2 and ν3 fundamental bands of the H2D+ ion, S. C. Foster, A. R. W. McKellar, I. R. Peterkin, J. K. G. Watson, F. S. Pan, M. W. Crofton, R. S. Altman, and T. Oka, J. Chem. Phys. 84, 91–99 (1986).
  123. The calculated ν2 (inversion) spectrum of H3O+, D.-J. Liu, T. Oka, and T. J. Sears, J. Chem. Phys. 84, 1312–1316 (1986).
  124. Observation of the rotational spectrum of OH-, D.-J. Liu and T. Oka, J. Chem. Phys. 84, 2426–2427 (1986).
  125. Calculated forbidden rotational spectra of H3+, F.-S. Pan and T. Oka, Astrophys. J. 305, 518–525 (1986).
  126. Sub-Doppler spectroscopy using a multiple-reflection mirror system, Y.-T. Chen, J. M. Frye, and T. Oka, J. Opt. Soc. Am. B 3, 935–939 (1986).
  127. Infrared spectroscopy of molecular ions, T. Oka, NBS. Spec. Publ. 716 (Proceedings of the Seventeenth International Symposium on Free Radicals), 540–546 (1986).
  128. Infrared spectrum of the fundamental vibration-rotation band of OD-, B. D. Rehfuss, M. W. Crofton, and T. Oka, J. Chem. Phys. 85, 1785–1788 (1986).
  129. Observation of ground state rotational transitions in silicon tetrafluoride, L. Jörissen, W. A. Kreiner, Y.-T. Chen, T. Oka, J. Mol. Spectrosc. 120, 233–235 (1986).
  130. Dicke narrowing and pressure broadening in the infrared fundamental band of HCl perturbed by Ar, D. R. Rao and T. Oka, J. Mol. Spectrosc. 122, 16–27 (1987).
  131. The infrared ν5 band (HNC bend) of protonated hydrogen cyanide, HCNH+, W.-C. Ho, C. E. Blom, D.-J. Liu, and T. Oka, J. Mol. Spectrosc. 123, 251–253 (1987).
  132. Infrared spectra of carboions. II. ν3 band of acetylene ion C2H2+ (2Πu), M. W. Crofton, M.- F. Jagod, B. D. Rehfuss, and T. Oka, J. Chem. Phys. 86, 3755–3756 (1987).
  133. Observation of forbidden transitions of ammonium ion (NH4+) Π3 band and determination of ground state rotational constants. Observation of ν3 band allowed transitions of ND4+, M. W. Crofton and T. Oka, J. Chem. Phys. 86, 5983–5988 (1987).
  134. Extraordinary molecules in interstellar space, T. Oka, in “Atomic Physics 10” (H. Narumi and I. Shimamura, Eds.), pp. 439-443, Elsevier, Amsterdam, 1987.
  135. Radial distribution of molecular ions in the positive column of dc glow discharges using infrared diode-laser spectroscopy, F.-S. Pan and T. Oka, Phys. Rev. A 36, 2297–2310 (1987).
  136. Rotational spectroscopy of molecular ions using diode lasers, D.-J. Liu, W.-C. Ho, and T. Oka, J. Chem. Phys. 87, 2442–2446 (1987).
  137. Vibrationally induced nuclear quadrupole coupling in the v3 = 1 state of 189OsO4, F. Scappini, W. A. Kreiner, J. M. Frye, and T. Oka, J. Chem. Phys. 87, 5644–5648 (1987).
  138. Infrared molecular spectroscopy using frequency tunable lasers, T. Oka, Hyperfine Interac. 38, 653–670 (1987).
  139. Infrared spectroscopy of carbo-ions. III. ν3 band of methyl cation CH3+, M. W. Crofton, M.- F. Jagod, B. D. Rehfuss, W. A. Kreiner, and T. Oka, J. Chem. Phys. 88, 666–678 (1987).
  140. Vibration-induced first-order Stark effect in tetrahedral molecules: SiH4 and SiF4, J. M. Frye, G. Magerl, W. A. Kreiner, and T. Oka, J. Chem. Phys. 88, 730–737 (1987).
  141. Infrared spectroscopy of carbo-ions, T. Oka, Philos. Trans. R. Soc. London, Ser. A 324, 81–95 (1988).
  142. Infrared spectroscopy of the ν3 band of H2O+, B. M. Dinelli, M. W. Crofton, and T. Oka, J. Mol. Spectrosc. 127, 1–11 (1988).
  143. The ν3 fundamental band of HCNH+ and the 2ν3 ← ν3 and ν2 + ν3 ← ν2 hot bands of HCO+, D.-J. Liu, S.-T. Lee, and T. Oka, J. Mol. Spectrosc. 128, 236–249 (1988).
  144. Infrared spectroscopy of molecular ions, T. Oka in “Frontiers of Laser Spectroscopy of Gases” (A. C. P. Alves, J. M. Brown, and J. M. Hollas, Eds.), pp. 353-377, Kluwer Academic, Norwell, MA, 1988.
  145. Stark and Zeeman effects in ethylene observed by sub-Doppler infrared spectroscopy, Y.-T. Chen and T. Oka, J. Chem. Phys. 88, 5282–5290 (1988).
  146. Infrared spectroscopy of carbo-ions. IV. The A2Πu-X2Σg+ electronic transition of C2-, B. D. Rehfuss, D.-J. Liu, B. M. Dinelli, M.-F. Jagod, W. C. Ho, M. W. Crofton, and T. Oka, J. Chem. Phys. 89, 129–137 (1988).
  147. The ν2 1- 0+ band of H318O+, N. N. Haese, D.-J. Liu, and T. Oka, J. Mol. Spectrosc. 130, 262–263 (1988).
  148. Infrared spectroscopy of molecular ions, T. Oka, in “Structure of Small Molecules and Ions” (R. Naaman and Z. Vager, Eds.), pp. 77–86, Plenum, New York, 1988.
  149. Infrared-radiofrequency double resonance spectroscopy of CH3F using a color center laser, C. Pursell, W. C. Ho, F. Scappini, and T. Oka, J. Mol. Spectrosc. 131, 241–249 (1988).
  150.  High-resolution infrared spectroscopy of solid hydrogen: The tetrahexacontapole-induced ΔJ=6 transitions, M. Okumura, M.-C. Chan, and T. Oka, Phys. Rev. Lett. 62, 32–35 (1989).
  151. On the anomalous A1-A2 splittings in the ν2ν4 manifold of PH3, Y.-T. Chen and T. Oka, J. Mol. Spectrosc. 133, 148–156 (1989).
  152. Observation and analysis of the ν3 band of NH3+, M. G. Bawendi, B. D. Rehfuss, B. M. Dinelli, M. Okumura, and T. Oka, J. Chem. Phys. 90, 5910–5917 (1989).
  153. Difference frequency laser spectroscopy of the ν3 fundamental band of NH2+, M. Okumura, B. D. Rehfuss, B. M. Dinelli, M. G. Bawendi, and T. Oka, J. Chem. Phys. 90, 5918–5923 (1989).
  154. An infrared spectroscopic search for the molecular ion H3+, T. R. Geballe and T. Oka, Astrophys. J. 342, 855–859 (1989).
  155. Infrared spectroscopy of carbo-ions. V. Classical vs. nonclassical structure of protonated acetylene C2H3+, M. W. Crofton, M.-F. Jagod, B. D. Rehfuss, and T. Oka, J. Chem. Phys. 91, 5139–5153 (1989).
  156. Infrared spectra of 4HeH+, 4HeD+, 3HeH+, and 3HeD+, M. W. Crofton, R. S. Altman, N. N. Haese, and T. Oka, J. Chem. Phys. 91, 5882–5886 (1989).
  157. Observation of direct and collision-induced double resonance of a molecular ion, C. J. Pursell, D. P. Weliky, W. C. Ho, K. Takagi, and T. Oka, J. Chem. Phys. 91, 7997–7999 (1989).
  158. Inertial defects of planar symmetric top molecules, M.-F. Jagod and T. Oka, J. Mol. Spectrosc. 139, 313–327 (1990).
  159. Observations of the 4 micron fundamental band of H3+ in Jupiter, T. Oka and T. R. Geballe, Astrophys. J. 351, L53–L56 (1990).
  160. Infrared-microwave double resonance spectroscopy of molecular ions: HN2+, W. C. Ho, C. J. Pursell, D. P. Weliky, K. Takagi, and T. Oka, J. Chem. Phys. 93, 87–93 (1990).
  161. Observation of the U10(1) transition of solid deuterium, M.-C. Chan and T. Oka, J. Chem. Phys. 93, 979–982 (1990).
  162. Laboratory observation of hot bands of H3+, M. G. Bawendi, B. D. Rehfuss, and T. Oka, J. Chem. Phys. 93, 6200–6209 (1990).
  163. Observation of the 2ν2(l = 2) 0 overtone band of H3+, L.-W. Xu, C. Gabrys, and T. Oka, J. Chem. Phys. 93, 6210–6215 (1990).
  164. Collision-induced double resonance studies of HN2+ and HCN, C. J. Pursell, D. P. Weliky, and T. Oka, J. Chem. Phys. 93, 7041–7048 (1990).
  165. Diode laser spectroscopy of the ν2 fundamental and hot bands of NH3+, S. S. Lee and T. Oka, J. Chem. Phys. 94, 1698–1704 (1991).
  166. Observation of the 3ν2 0 overtone band of H3+, S. S. Lee, B. F. Ventrudo, D. T. Cassidy, T. Oka, S. Miller, and J. Tennyson, J. Mol. Spectrosc. 145, 222–224 (1991).
  167. High-resolution infrared spectroscopy of solid hydrogen, M.-C. Chan, M. Okumura, C. M. Gabrys, L.-W. Xu, B. D. Rehfuss, and T. Oka, Phys. Rev. Lett. 66, 2060–2063 (1991). (erratum)
  168. A table of astronomically important ro-vibrational transitions for the H3+ molecular ion, L. Kao, T. Oka, S. Miller, J. Tennyson, Astrophys. J. Suppl. Ser. 77, 317–329 (1991).
  169. Laser spectroscopic studies of the pure rotational U0(0) and W0(0) transitions of solid parahydrogen, M.-C. Chan, S. S. Lee, M. Okumura, and T. Oka, J. Chem. Phys. 95, 88–97 (1991). (erratum)
  170. Infrared spectroscopy in a H2-O2-He discharge: H3O+, W. C. Ho, C. J. Pursell, and T. Oka, J. Mol. Spectrosc. 149, 530–541 (1991).
  171. Laboratory infrared spectra of CH2D+ and HCCD+ and predicted microwave transitions, M. Rösslein, M.-F. Jagod, C. M. Gabrys, and T. Oka, Astrophys. J. 382, L51–L53 (1991).
  172. High resolution infrared spectroscopy of deuterium in p-H2 matrix, M.-C. Chan, L.-W. Xu, C. M. Gabrys, and T. Oka, J. Chem. Phys. 95, 9404–9407 (1991).
  173. Infrared spectroscopy of highly excited vibrational levels of the hydroxyl ion, OH+, B. D. Rehfuss, M.-F. Jagod, L.-W. Xu, and T. Oka, J. Mol. Spectrosc. 151, 59–70 (1992).
  174. Infrared spectroscopy of carbo-ions: the ν1 and ν4 bands of CH2D+, and the ν1 band of CHD2+, M.-F. Jagod, M. Rösslein, C. M. Gabrys, and T. Oka, J. Mol. Spectrosc. 153, 666–679 (1992).
  175. Observation of infrared forbidden transitions of H3+, L.-W. Xu, M. Rösslein, C. M. Gabrys, and T. Oka, J. Mol. Spectrosc. 153, 726–737 (1992).
  176. Detection of the infrared spectrum of CH2+, M. Rösslein, C. M. Gabrys, M.-F. Jagod, and T. Oka, J. Mol. Spectrosc. 153, 738–740 (1992).
  177. The stimulated Raman gain spectrum of the Q10(0) transition of solid parahydrogen, T. Momose, D. P. Weliky, and T. Oka, J. Mol. Spectrosc. 153, 760–761 (1992).
  178. The infrared spectrum of H3+ in laboratory and space plasmas, T. Oka, Rev. Mod. Phys. 64, 1141–1149 (1992).
  179. Infrared spectroscopy and equilibrium structure of H2O+ (X 2B1), T. R. Huet, C. J. Pursell, W. C. Ho, B. M. Dinelli, and T. Oka, J. Chem. Phys. 97, 5977–5987 (1992).
  180. Infrared spectroscopy of carbo-ions. VI. C–H stretching vibration of the acetylene ion C2H2+ and isotopic species, M.-F. Jagod, M. Rösslein, C. M. Gabrys, B. D. Rehfuss, F. Scappini, M. W. Crofton, and T. Oka, J. Chem. Phys. 97, 7111–7123 (1992).
  181. Infrared spectrum of H3+ as an astronomical probe, T. Oka and M.-F. Jagod, J. Chem. Soc., Faraday Trans. 89, 2147–2154 (1993).
  182. Detection of H3+ infrared emission lines in Saturn, T. R. Geballe, M.-F. Jagod, and T. Oka, Astrophys. J. 408, L109–L112 (1993).
  183. High-resolution spectroscopy of solid hydrogen, T. Oka, Annu. Rev. Phys. Chem. 44, 299–333 (1993).
  184. Infrared spectroscopy of highly excited vibrational levels of protonated nitrogen, HN2+, Y. Kabbadj, T. R. Huet, B. D. Rehfuss, C. M. Gabrys, and T. Oka, J. Mol. Spectrosc. 163, 180–205 (1994).
  185. The ν2 + ν3 - ν2 band of NH3+, T. R. Huet, Y. Kabbadj, C. M. Gabrys, and T. Oka, J. Mol. Spectrosc. 163, 206–213 (1994).
  186. High-resolution laser spectroscopy of the Qv(0) transitions in solid parahydrogen, D. P. Weliky, T. J. Byers, K. E. Kerr, T. Momose, R. M. Dickson, and T. Oka, Appl. Phys. B 59, 265–281 (1994).
  187. Near infrared 3ν2 overtone band of H3+, B. F. Ventrudo, D. T. Cassidy, Z. Y. Guo, S. Joo, S. S. Lee, and T. Oka, J. Chem. Phys. 100, 6263–6266 (1994).
  188. Spectral lines and distribution of H3+ in high rotational levels, D. Uy, C. M. Gabrys, M.-F. Jagod, and T. Oka, J. Chem. Phys. 100, 6267–6274 (1994).
  189. Charge-induced H2 spectrum in γ-ray irradiated para-H2 crystals, T. Momose, K. E. Kerr, D. P. Weliky, C. M. Gabrys, R. M. Dickson, and T. Oka, J. Chem. Phys. 100, 7840–7843 (1994).
  190. Condon modulation spectroscopy of solid hydrogen and measurement of the temperature dependence of the Q1(0) transition, K. E. Kerr, T. Momose, D. P. Weliky, C. M. Gabrys, and T. Oka, Phys. Rev. Lett. 72, 3957–3960 (1994).
  191. Infrared spectrum of CH3+ involving high rovibrational levels, M. F. Jagod, C. M. Gabrys, M. Rösslein, D. Uy, and T. Oka, Can. J. Phys. 72, 1192–1199 (1994).
  192. Application of laser spectroscopy to fundamental molecular species: H3+ and solid H2, T. Oka, in “Frontiers in Laser Spectroscopy” (Proceedings of the International School of Physics “Enrico Fermi” Course CXX) (T. W. Hänsch and M. Inguscio, Eds.), pp. 61–87, North Holland, New York, 1994.
  193. Observation of the S3(0) transition in solid parahydrogen and a theory of solid-state rovibrational line widths, R. M. Dickson and T. Oka, J. Phys. Chem. 99, 2617–2624 (1995).
  194. On negative inertial defect, T. Oka, J. Mol. Struct. 352/353, 225–233 (1995).
  195. Infrared spectroscopy of carboions. VIII. Hollow cathode spectroscopy of protonated acetylene, C2H3+, C. M. Gabrys, D. Uy, M.-F. Jagod, T. Oka, and T. Amano, J. Phys. Chem. 99, 15611–15623 (1995).
  196. Direct measurement of the crystal field splitting of isolated J = 1 impurities in solid parahydrogen, R. M. Dickson, T. J. Byers, and T. Oka, J. Low Temp. Phys. 102, 241–247 (1996).
  197. Infrared spectroscopy of the amidogen ion, NH2+, Y. Kabbadj, T. R. Huet, D. Uy, and T. Oka, J. Mol. Spectrosc. 175, 277–288 (1996).
  198. Detection of H3+ in interstellar space, T. R. Geballe and T. Oka, Nature 384, 334–335 (1996).
  199. High-resolution infrared spectroscopy of isotopic impurity Q1(0) transitions in solid parahydrogen, D. P. Weliky, K. E. Kerr, T. J. Byers, Y. Zhang, T. Momose, and T. Oka, J. Chem. Phys. 105, 4461–4481 (1996).
  200. High-resolution infrared spectroscopy of Q1(0) transitions in parahydrogen crystals induced by laser radiation field, external electric field, impurity quadrupole field, and the Coulomb field of charges, T. Oka, Fiz. Nizk. Temp. (Kiev) 22, 134–139 (1996).
  201. High-resolution spectroscopy of solid hydrogen, T. Momose and T. Oka, Oyo Buturi 65, 902–911 (1996).
  202. Observation of the rotational spectra of 4HeH+, 4HeD+, 3HeH+, and 3HeD+, F. Matsushima, T. Oka, and K. Takagi, Phys. Rev. Lett. 78, 1664–1666 (1997).
  203. Observation of ortho-para H3+ selection rules in plasma chemistry, D. Uy, M. Cordonnier, and T. Oka, Phys. Rev. Lett. 78, 3844–3847 (1997).
  204. Observation of Δ|k-l| = 3 transitions in the ν3 band of H3O+, D. Uy, E. T. White, and T. Oka, J. Mol. Spectrosc. 183, 240–244 (1997).
  205. UKIRT observations of the impact and consequences of Comet Shoemaker-Levy 9 on Jupiter, B. M. Dinelli, S. Miller, N. Achilleos, H. A. Lam, M. Cahill, J. Tennyson, M.-F. Jagod, T. Oka, J.-C. Hilico, and T. R. Geballe, Icarus 126, 107–125 (1997).
  206. The infrared spectrum of H3+ in laboratory and space plasmas, T. Oka in “Spectroscopy: Perspectives and Frontiers” (A. P. Roy, Ed.), pp. 1–16, Narosa, New Delhi, 1997.
  207. Water on the Sun: molecules everywhere, T. Oka, Science 277, 328–329 (1997).
  208. Infrared spectroscopic study of rovibrational states of methane trapped in parahydrogen crystal, T. Momose, M. Miki, T. Wakabayashi, T. Shida, M.-C. Chan, S. S. Lee, and T. Oka, J. Chem. Phys. 107, 7707–7716 (1997).
  209. High-resolution spectroscopy of the impurity-induced Q3(0) transition of solid parahydrogen, R. M. Dickson, T. Momose, T. J. Byers, and T. Oka, Phys. Rev. B 57, 941–949 (1998).
  210. Variation of intermolecular interaction and local lattice distortion of parahydrogen crystals upon vibrational excitation, R. M. Dickson and T. Oka, Phys. Rev. B 57, 950–955 (1998).
  211. Detection of H3+ in the diffuse interstellar medium toward Cygnus OB2 No. 12, B. J. McCall, T. R. Geballe, K. H. Hinkle, and T. Oka, Science 279, 1910–1913 (1998).
  212. High-resolution infrared spectroscopy of the J = 1 H2 pair in parahydrogen crystals, Y. Zhang, T. J. Byers, M.-C. Chan, T. Momose, K. E. Kerr, D. P. Weliky, and T. Oka, Phys. Rev. B 58, 218–233 (1998).
  213. H3+ in dense and diffuse clouds, B. J. McCall, K. H. Hinkle, T. R. Geballe, and T. Oka, Faraday Discuss. 109, 267–280 (1998).
  214. Recent Observations of H3+ in Molecular Clouds, T. R. Geballe, B. J. McCall, and T. Oka, , in "Star Formation with the Infrared Space Observatory", ASP Conference Series, (J. L. Yun and R. Liseau, Eds.) Vol. 132, 1998, pp. 72-75.
  215. Detection of H3+ in the diffuse interstellar medium: the Galactic center and Cygnus OB2 Number 12, T. R. Geballe, B. J. McCall, K. H. Hinkle, and T. Oka, Astrophys. J. 510, 251–257 (1999).
  216. CH5+: The infrared spectrum observed, E. T. White, J. Tang, and T. Oka, Science 284, 135–137 (1999).
  217. Infrared spectroscopy of H3O+: The ν1 fundamental band, J. Tang and T. Oka, J. Mol. Spectrosc. 196, 120–130 (1999).
  218. Observations of H3+ in dense molecular clouds, B. J. McCall, T. R. Geballe, K. H. Hinkle, and T. Oka, Astrophys. J. 522, 338–348 (1999).
  219. CH5+ stability and mass spectrometry, E. T. White and T. Oka, Science 286, 1051 (1999).
  220. Observations of diffuse interstellar bands attributed to C7-, B. J. McCall, D. G. York, and T. Oka, Astrophys. J. 531, 329–335 (2000).
  221. H3+ in the diffuse interstellar medium: the enigma related to dissociative recombination, T. Oka, in “Dissociative Recombination: Theory, Experiment, and Applications IV” (M. Larsson, J. B. A. Mitchell, and I. F. Schneider, Eds.), pp. 13–24, World Scientific, Singapore, 2000.
  222. H3+ — an ion with many talents, B. J. McCall and T. Oka, Science 287, 1941–1942 (2000).
  223. Infrared Spectrum of p-hydrogen crystals ionized by 3 MeV electrons: Cluster ions of hydrogen in condensed phase, M.-C. Chan, M. Okumura, and T. Oka, J. Phys. Chem. A 104, 3775–3779 (2000).
  224. Combination band spectroscopy of H3+, B. J. McCall and T. Oka, J. Chem. Phys. 113, 3104–3110 (2000).
  225. Introductory remarks (On astronomy, physics, and chemistry of H3+), T. Oka, Philos. Trans. R. Soc. London, Ser. A 358, 2363–2369 (2000).
  226. Measurement of the H3+ destruction rate due to ambipolar diffusion in an AC positive column discharge, C. M. Lindsay, E. T. White, and T. Oka, Chem. Phys. Lett. 328, 129–134 (2000).
  227. Selection rules for nuclear spin modifications in ion-neutral reactions involving H3+, M. Cordonnier, D. Uy, R. M. Dickson, K. E. Kerr, Y. Zhang, and T. Oka, J. Chem. Phys. 113, 3181–3193 (2000).
  228. Fine structure of the H2 5g-4f inter-Rydberg transition revealed by difference frequency laser spectroscopy, D. Uy, C. M. Gabrys, T. Oka, B. J. Cotterell, R. J. Stickland, Ch. Jungen, and A. Wüest, J. Chem. Phys. 113, 10143–10153 (2000).
  229. High resolution infrared spectroscopy of neutral and ion clusters in para-H2 crystals, T. Oka, in “Nobel Symposium on Cluster Physics” (M. Larsson and E. Campbell, Eds.), pp. 191–205, World Scientific, Singapore, 2001.
  230. Sharp spectral lines observed in γ-ray ionized parahydrogen crystals, T. Momose, C. M. Lindsay, Y. Zhang, and T. Oka, Phys. Rev. Lett. 86, 4795–4798 (2001).
  231. Rejection of the C7- diffuse interstellar band hypothesis, B. J. McCall, J. Thorburn, L. M. Hobbs, T. Oka, and D. G. York, Astrophys. J. 559, L49–L53 (2001).
  232. Survey of H3+ transitions between 3000 and 4200 cm-1, C. M. Lindsay, R. M. Rade, Jr., and T. Oka, J. Mol. Spectrosc. 210, 51–59 (2001).
  233. Observations of H3+ in the diffuse interstellar medium, B. J. McCall, K. H. Hinkle, T. R. Geballe, G. H. Moriarty-Schieven, N. J. Evans II, K. Kawaguchi, S. Takano, V. V. Smith, and T. Oka, Astrophys. J. 567, 391–406 (2002).
  234. A critical examination of the l-C3H2- spectrum and the diffuse interstellar bands, B. J. McCall, T. Oka, J. Thorburn, L. M. Hobbs, and D. G. York, Astrophys. J. 567, L145–L148 (2002).
  235. Planet formation: Enigmatic emission, T. Oka, Nature 418, 31–33 (2002).
  236. Absorption line survey of H3+ toward the Galactic Center sources I. GCS 3-2 and GC IRS3, M. Goto, B. J. McCall, T. R. Geballe, T. Usuda, N. Kobayashi, H. Terada, and T. Oka, Publ. Astron. Soc. Jpn. 54, 951–961 (2002).
  237. Observations of C3 in translucent sight lines, T. Oka, J. A. Thorburn, B. J. McCall, S. D. Friedman, L. M. Hobbs, P. Sonnentrucker, D. E. Welty, and D. G. York, Astrophys. J. 582, 823–829 (2003).
  238. Some diffuse interstellar bands related to interstellar C2 molecules, J. A. Thorburn, L. M. Hobbs, B. J. McCall, T. Oka, D. E. Welty, S. D. Friedman, T. P. Snow, P. Sonnentrucker, and D. G. York, Astrophys. J. 584, 339–356 (2003).
  239. Stimulated Stokes downconversion in liquid and solid parahydrogen, B. J. McCall, A. J. Huneycutt, R. J. Saykally, C. M. Lindsay, T. Oka, M. Fushitani, Y. Miyamoto, and T. Momose, Appl. Phys. Lett. 82, 1350–1352 (2003).
  240. A remeasurement of the 2.4 μm spectrum of J=1 H2 pairs in a parahydrogen crystal, C. M. Lindsay, T. Oka, and T. Momose, J. Mol. Spectrosc. 218, 131-133 (2003).
  241. Rotational analysis of the (3,3) and (4,4) bands of the A2Πu ← X4Σg+ system of N2+ in the near-infrared using velocity modulation spectroscopy, C. G. Tarsitano and T. Oka, J. Mol. Spectrosc. 219, 263-270 (2003).
  242. Near-infrared spectroscopy of H3+ above the barrier to linearity, J. L. Gottfried, B. J. McCall, and T. Oka, J. Chem. Phys. 118, 10890-10899 (2003).
  243. Observation of interstellar H3+ using Subaru IRCS. The galactic center, M. Goto, B. J. McCall, T. R. Geballe, T. Usuda, N. Kobayashi, H. Terada, and T. Oka, Astronomical Society of the Pacific Conference Series  289, 189-193 (2003).
  244. Help!!! Theory for H3+ recombination badly needed, T. Oka, in “Dissociative Recombination of Molecular Ions with Electrons” (S. L. Guberman, Ed.), pp. 209-220, Kluwer Academic/Plenum Publishers, New York, 2003.
  245. Enigma of H3+ in diffuse interstellar clouds, B. J. McCall and T. Oka, in “Dissociative Recombination of Molecular Ions with Electrons” (S. L. Guberman, Ed.), pp. 365-371, Kluwer Academic/Plenum Publishers, New York, 2003.
  246. Microwave and infrared spectroscopy of molecular ions, T. Oka, in "Encyclopedia of Mass Spectrometry" (P. B. Armentrout, Ed.), pp. 217-226, 2003.
  247. H3+ in dark clouds, T. R. Geballe, B. J. McCall, T. Oka, in “Chemistry as a Diagnostic of Star Formation” (C. L. Curry and M. Fich, Eds.), pp. 46-49, National Research Council of Canada, Ottawa, 2003.
  248. The ubiquitous H3+, T. Oka, Springer Proceedings in Physics , 37-42 (2004).
  249. The nonthermal rotational distribution of H3+, T. Oka and E. Epp, Astrophys. J. 613, 349-354 (2004).
  250. High-resolution spectroscopy of the 22Πu ← X4Σg- forbidden transitions of C2+, C. G. Tarsitano, C. F. Neese, and T. Oka, J. Chem. Phys. 121, 6290-6297 (2004).
  251. Near-infrared electronic spectrum of CH2+, J. L. Gottfried and T. Oka, J. Chem. Phys. 121, 11527-11529 (2004).
  252. H3+ line survey towards the Galactic center, M. Goto, B. J. McCall, T. R. Geballe, T. Usuda, and T. Oka, Springer Proceedings in Physics 91, 537-540 (2004).
  253. Atomic and molecular emission lines from the red rectangle, L. M. Hobbs, J. A. Thorburn, T. Oka, J. Barentine, T. P. Snow, D. G. York, Astrophys. J. 615, 947-957 (2004).
  254. Nuclear spin selection rules in chemical reactions by angular momentum algebra, T. Oka, J. Mol. Spectrosc. 228, 635-639 (2004).
  255. Search for H3+ in HD 141569 A. M. Goto, T. R. Geballe, B. J. McCall, T. Usuda, H. Suto, H. Terada, N. Kobayashi, and T. Oka, Astrophys. J. 629, 865-872 (2005).
  256.  Hot and diffuse clouds near the Galactic center probed by metastable H3+. T. Oka, T. R. Geballe, M. Goto, T. Usuda, and B. J. McCall, Astrophys. J. 632, 882-893 (2005).
  257. High-resolution stimulated Raman gain spectroscopy of parahydrogen crystals. T. Momose and T. Oka, J. Low Temp. Phys. 139, 515-522 (2005)
  258. Nuclear spin conversion in molecules. J. T. Hougen and T. Oka, Science 310, 1913-1915 (2005).
  259. Interstellar medium of IRAS 08572 + 3915 NW : H3+ and warm high velocity CO. T. R. Geballe, M. Goto, T. Usuda, T. Oka, and B. J. McCall, Astrophys. J. 644, 907-913 (2006).
  260. A key molecular ion in the Universe and in the Laboratory. T. R. Geballe and T. Oka, Science 312, 1610-1612 (2006).
  261. Interstellar H3+. T. Oka, Proc. Natl, Acad. Sci. U. S. A. 103, 12235-12242 (2006).
  262. Introductory remark. T. Oka, Phil. Trans. R. Soc. Lond. A 364, 2847-2853 (2006).
  263. Corrections and addendum. T. Oka, Phil. Trans. R. Soc. Lond. A 364, 3149-3151 (2006).
  264. H3+ in diffuse interstellar clouds: A tracer for the cosmic-ray ionization rate. N. Indriolo, T. R. Geballe, T. Oka, and B. J. McCall, Astrophys. J. 671, 1736-1747 (2007).
  265. A catalogue of diffuse interstellar bands in the spectrum of HD 204827. L. M. Hobbs, D. G. York, T. P. Snow, T. Oka, J. A. Thorburn, M. Bishof, S. D. Friedman, B. J. McCall, B. Rachford, P. Sonnentrucker, and D. E. Welty, Astrophys. J. 680, 1256-1270 (2008).
  266. Absorption line survey of H3+ toward the Galactic center sources II. Eight infrared sources within 30 pc of the Galactic center. M. Goto, T. Usuda, T. Nagata, T. R. Geballe, B. J. McCall, N. Indriolo, H. Suto, T. Henning, C. P. Morong, and T. Oka, Astrophys. J. 688, 306-319 (2008).
  267. H3+ as the benchmark for rigorous ab initio theory. C. P. Morong, J. L. Gottfried, and T. Oka, J. Mol. Spectrosc. 255, 13-23 (2009).
  268. Studies of the diffuse interstellar bands. IV. HD 183143. H. M. Hobbs, D. G. York, J. A. Thorburn, T. P. Snow, M. Bishof, S. D. Friedman, B. J. McCall, T. Oka, P. Sonnentrucker, and D. E. Welty, Astrophys. J. 705, 32-45 (2009).
  269. Two new and remarkable sightlines through the Galactic center’s molecular gas. T. R., Geballe and T. Oka, Astrophys. J. 709, L70-73 (2010).
  270. Orders of Magnitude and Symmetry in Molecular Spectroscopy. T. Oka, Handbook on High Resolution Spectroscopy, edit. M. Quack and F. Merkt, John Wiley and Sons, (2010) in press.
  271. Constraining the environment of CH+ formation with CH3+ observation. N. Indriolo, T. Oka, T. R. Geballe, and B. J. McCall, Astrophys. J. 711, 1338-1342 (2010).
  272. Dust and gas in the nucleus of NGC 1068: Comparison to the Galactic center’s Central Molecular Zone. T. R. Geballe, R. E. Mason, and T. Oka, Proceedings of the Galactic center Workshop 2009, (2010) in press.
  273. Warm and diffuse gas in the Central Molecular Zone revealed by the infrared spectrum of H3+. T. Oka, T. R. Geballe, M. Goto, T. Usuda, N. Indriolo, and B. J. McCall, Proceedings of the Galactic center Workshop 2009, (2010) in press.
     

Miscellaneous Publications

  1. Reminiscences of Gerhard Herzberg at N. R. C., T. Oka in Physical Science in the Eighties: A Lecture Series Celebrating the 80th Birthday of Gerhard Herzberg,. La Physique au Canada pp. 65-74, 1985.
  2. Curriculum Vitae, T. Oka, J. Mol. Spectrosc. 153, 2-10 (1992).
  3. Biography, T. Oka, Spectroscopy Europe 5, 34 (1993).

Email t-oka@uchicago.edu

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