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Experimental Study of Temperature-Dependence Laws of Non-Voigt Absorption Line Shape Parameters

Wilzewski, Jonas and Birk, Manfred and Loos, Joep and Wagner, Georg (2017) Experimental Study of Temperature-Dependence Laws of Non-Voigt Absorption Line Shape Parameters. International Symposium on Molecular Spectroscopy, 19.-23. Jun. 2017, Champaign-Urbana, Illinois, USA.

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Official URL: https://www.ideals.illinois.edu/handle/2142/47531

Abstract

To improve the understanding of temperature-dependence laws of spectral line shape parameters, spectra of the v3 rovibrational band of CO2 perturbed by 10, 30, 100, 300 and 1000 mbar of N2 were measured at nine temperatures between 190 K and 330 K using a 22 cm long single-pass absorption cell in a Bruker IFS125 HR Fourier Transform spectrometer. The spectra were fitted employing a quadratic speed-dependent hard collision model in the Hartmann-Tran implementation extended to account for line mixing in the Rosenkranz approximation by means of a multispectrum fitting approach developed at DLR. This enables high accuracy parameter retrievals to reproduce the spectra down to noise level and we will present the behavior of line widths, shifts, speed-dependence-, collisional narrowing- and line mixing-parameters over this 140 K temperature range.

Item URL in elib:https://elib.dlr.de/111466/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental Study of Temperature-Dependence Laws of Non-Voigt Absorption Line Shape Parameters
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wilzewski, JonasJonas.Wilzewski (at) dlr.dehttps://orcid.org/0000-0002-1392-2966
Birk, ManfredManfred.Birk (at) dlr.deUNSPECIFIED
Loos, JoepJoep.Loos (at) dlr.deUNSPECIFIED
Wagner, GeorgGeorg.Wagner (at) dlr.deUNSPECIFIED
Date:2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:lineshapes, collisional effects, temperature-dependence, infrared spectroscopy
Event Title:International Symposium on Molecular Spectroscopy
Event Location:Champaign-Urbana, Illinois, USA
Event Type:international Conference
Event Dates:19.-23. Jun. 2017
Organizer:University of Illinois
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Experimental Methods
Deposited By: Wilzewski, Jonas
Deposited On:14 Mar 2017 08:25
Last Modified:31 Jul 2019 20:08

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