EFFECT OF COLLISIONS ON LINE PROFILES IN THE QUADRUPOLE AND RAMAN SPECTRA OF MOLECULAR $HYDROGEN^{*}$

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 dc.creator Kelley, J. D. en_US dc.creator Bragg, S. L. en_US dc.date.accessioned 2006-06-15T14:54:52Z dc.date.available 2006-06-15T14:54:52Z dc.date.issued 1985 en_US dc.identifier 1985-RC-2 en_US dc.identifier.uri http://hdl.handle.net/1811/12149 dc.description $^{*}$This work is sponsored by the McDonnell Douglas Independent Research and Development Program. $^{1}$For example, R. A. J. Keiser, J. R. Lombardi, K. D. Van Den Hout, B. C. Sanctuary, and H. F. P. Knaap, Physica 76, 585 (1974). $^{2}$For example, J. R. Murray and A. Javan, J. Mol. Spectrosc. 29, 502 (1969). $^{3}$S. L. Bragg, Thesis (Washington University, 1981). $^{4}$C. Chackerian, JR. and L. P. Giver, J. Mol. Spectrosc, 58, 339 (1975). en_US dc.description Author Institution: McDonnell Douglas Research Laboratories; McDonnell Douglas Research Laboratories en_US dc.description.abstract An extensive set of data now exists for line shifts and collision broadening coefficients in molecular hydrogen. Collision broadening has been studied in the pure rotational Raman $spectrum,^{1}$ the fundamental (1-0) $Raman^{2}$ and $quadrupole^{3}$ vibrational bands, and in the 2-0 to 4-0 quadrupole overtone $bands.^{3}$ Line-shift measurements in the fundamental and first overtone bands are also $available.^{2-4}$ This data set allows decomposition of the total broadening coefficient into separate contributions from collisional effects on the rotational and vibrational degrees of freedom. Moreover, comparison of line shift and broadening coefficients permits subdivision of the vibrational effects into collisional phase-shift and near-resonant vibrational energy exchange processes. The various collisional contributions to the broadening and line-shift coefficients will be discussed, with emphasis on the relationship of these quantities to the $H_{2} - H_{2}$ intermolecular potential. en_US dc.format.extent 116913 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title EFFECT OF COLLISIONS ON LINE PROFILES IN THE QUADRUPOLE AND RAMAN SPECTRA OF MOLECULAR $HYDROGEN^{*}$ en_US dc.type article en_US