Microwave Pressure Broadening and Its Application to Intermolecular Forces

Birnbaum, George

doi:10.1002/9780470143582.ch9

Cited by 146 publications

(16 citation statements)

References 106 publications

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“…The half-width coefficients were calculated at 200, 250, 296, 350, and For atmospheric applications, both the temperature and pressure dependence of half-width coefficients are required on a line-by-line basis. The temperature scaling law [30] and Eq. (1).…”

Section: Theoretical Calculationsmentioning

confidence: 99%

Measurement and computations for temperature dependences of self-broadened carbon dioxide transitions in the 30012←00001 and 30013←00001 bands

Predoi‐Cross

Liu

Murphy

et al. 2010

Journal of Quantitative Spectroscopy and Radiative Transfer

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Using a Fourier transform spectrometer setup we have measured the self-broadened half width, pressure shift, and line asymmetry coefficients for transitions in the 30012'00001 and 30013'00001 vibrational bands of carbon dioxide for four different temperatures. A total of 46 pure CO 2 spectra were recorded at 0.008 and 0.009 cm À 1 resolution and at pressures varying from a few Torr to nearly an atmosphere. The individual spectral line profiles have been fitted by a Voigt profile and a speeddependent Voigt profile, to which we have added dispersion profiles to account for weak line mixing. A comparison of the sets of results obtained for each band showed no vibrational dependence of the broadening coefficients. The self-broadening and selfshift coefficients are compared to semiclassical calculations based on the RobertBonamy formalism and were found to be in good agreement. The line asymmetry results are compared to line mixing calculations based on the Energy Corrected Sudden (ECS) and Exponential Power Gap models.

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Section: Theoretical Calculationsmentioning

confidence: 99%

Measurement and computations for temperature dependences of self-broadened carbon dioxide transitions in the 30012←00001 and 30013←00001 bands

Predoi‐Cross

Liu

Murphy

et al. 2010

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…8, where the larger size symbols are used for m 2 . Birnbaum [71] has shown that for a system that has only the ''dipole-quadrupole'' interaction, the temperature exponent is 0.83. This is the leading interaction of the H 2 O-CO 2 system.…”

Section: Temperature Dependence Of the Half-widthmentioning

confidence: 99%

CO2-broadened water in the pure rotation and ν2 fundamental regions

Brown¹,

Humphrey²,

Gamache³

2007

Journal of Molecular Spectroscopy

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“…To account for a Doppler shift due to the gas bulk velocity, one needs only to Doppler shift the spectral line location. The Doppler shift for a spectral line for nonrelativistic speeds (v/c << 1) can be approximated as (18) where v is the component of the velocity along the optical line-of-sight. The new spectral line center position of a moving gas can then be given by (19) where and respresent the bulk gas speed and the angle between the gas velocity and the light propagation vector.…”

Section: Figure 1 Schematic Of a Simple Tunable Laser Absorption Meamentioning

confidence: 99%

“…Utilizing the equations governing the absorption process in Eqs. (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19), a spectral transmittance is nonlinear-fitted to the measured spectral transmittance data by iteratively adjusting the absorbing specie number density. Unlike the previous two techniques, this technique does not utilize integration over the spectral line and thus does not possess the indirect dependency on the line width that is inherent with a line integration technique when one cannot scan the entire absorption feature.…”

Section: Nonlinear Spectral Transmittance Curve Fit For Absorbing Spementioning

confidence: 99%

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HITRAN/HITEMP Spectral Databases and Uncertainty Propagation by Means of Monte Carlo Simulation with Application to Tunable Diode Laser Absorption Diagnostics

Phillips¹,

Plemmons²,

Galyen³

2011

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Reviewed by: CARRIE REINHOLTZ Project Manager Technology Branch (TTSY), USAF Approved by:SCOTT WALTERMIRE Technical Director Technology Branch (TTSY), USAF REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.

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Microwave Pressure Broadening and Its Application to Intermolecular Forces

Cited by 146 publications

References 106 publications

Measurement and computations for temperature dependences of self-broadened carbon dioxide transitions in the 30012←00001 and 30013←00001 bands

Measurement and computations for temperature dependences of self-broadened carbon dioxide transitions in the 30012←00001 and 30013←00001 bands

CO2-broadened water in the pure rotation and ν2 fundamental regions

HITRAN/HITEMP Spectral Databases and Uncertainty Propagation by Means of Monte Carlo Simulation with Application to Tunable Diode Laser Absorption Diagnostics

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