NDLI: Study of molecular line parameters down to very low temperature

Content Provider	Springer Nature Link
Author	Mondelain, D. Camy Peyret, C. Deng, W. Payan, S. Mantz, A.W.
Copyright Year	2008
Abstract	The impact of precise spectroscopic measurements on the P(9) multiplet in the ν3 band of 12CH4, obtained using a newly developed cold Herriott cell coupled with a tunable diode laser spectrometer, is examined in the context of remote sensing of methane in the atmosphere. More specifically, the influence of the air-broadening temperature dependence, of line narrowing and of line-mixing effects is assessed when fitting high resolution atmospheric spectra recorded from a balloon in the solar occultation mode. This is achieved by considering residuals and retrieved methane volume mixing ratio profiles. By combining data from previous studies together with new measurements, the expression for the temperature dependence of the broadening coefficient has been revisited. It is shown that a correcting factor applied to the usual law gives better results, when considering all the available measurements from room temperature down to about 10–20 K, as compared to the usual expression of the width versus temperature. These results clearly demonstrate that collision broadening is more sensitive to long-range attractive forces when the temperature is decreased.
Starting Page	227
Ending Page	233
Page Count	7
File Format	PDF
ISSN	09462171
Journal	Applied Physics B
Volume Number	90
Issue Number	2
e-ISSN	14320649
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-01-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physics and Applied Physics in Engineering Optical Spectroscopy, Ultrafast Optics Quantum Optics, Quantum Electronics, Nonlinear Optics Laser Technology and Physics, Photonics Physical Chemistry Electromagnetism, Optics and Lasers
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Intracavity laser absorption spectroscopy and cavity ring-down spectroscopy in low-pressure flames

Towards Supercontinuum Cavity Ring-Down Spectroscopy

Temperature sensors and optical sensors

Filamentation nonlinear optics

Room-temperature diode laser photoacoustic spectroscopy near 2.3 μm

Diode laser atomic fluorescence temperature measurements in low-pressure flames

Low-temperature performance of InP-based long-wavelength VCSELs

Vertical integration of ultrafast semiconductor lasers

Nonlinear coherent backscattering

Study of molecular line parameters down to very low temperature

Similar Documents

Intracavity laser absorption spectroscopy and cavity ring-down spectroscopy in low-pressure flames

Towards Supercontinuum Cavity Ring-Down Spectroscopy

Temperature sensors and optical sensors

Filamentation nonlinear optics

Room-temperature diode laser photoacoustic spectroscopy near 2.3 μm

Diode laser atomic fluorescence temperature measurements in low-pressure flames

Low-temperature performance of InP-based long-wavelength VCSELs

Vertical integration of ultrafast semiconductor lasers

Nonlinear coherent backscattering

Study of molecular line parameters down to very low temperature