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Remote Raman detection of chlorine with deep UV excitation wavelengths

Gallo, Emanuela and Duschek, Frank (2021) Remote Raman detection of chlorine with deep UV excitation wavelengths. 2nd Scientific International Conference on CBRNe, 10-12 Dec 2020, Rome, Italy.

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Abstract

Deep ultraviolet Raman spectroscopy measurements have been performed at the German Aerospace Center (DLR) to detect chlorine gas. In this study a remote Raman set up was optimized to detect chlorine gas at a distance of 60 cm. Several ultraviolet laser wavelengths (224, 232, 235 nm respectively, 2.5 mJ/pulse at 10 Hz) were changed to experimentally observe the highest possible signal to noise ratio. For each tested excitation wavelength, chlorine spectra were successfully detected. Detection limits in acquisition times for a 0.36 bar chlorine sample are discussed. A possible solution to avoid spectral overlapping of the background material with the sample is presented.

Item URL in elib:https://elib.dlr.de/139584/
Document Type:Conference or Workshop Item (Speech)
Title:Remote Raman detection of chlorine with deep UV excitation wavelengths
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gallo, EmanuelaEmanuela.Gallo (at) dlr.deUNSPECIFIED
Duschek, Frankfrank.duschek (at) dlr.dehttps://orcid.org/0000-0002-1809-0257
Date:2021
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Raman spectroscopy, chlorine, CBRNe, ultraviolet
Event Title:2nd Scientific International Conference on CBRNe
Event Location:Rome, Italy
Event Type:international Conference
Event Dates:10-12 Dec 2020
Organizer:Tor Vergata University of Rome
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Technical Physics > Atmospheric Propagation and Effect
Deposited By: Gallo, Ph.D. Emanuela
Deposited On:16 Dec 2020 12:44
Last Modified:30 Mar 2021 09:32

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