Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity

We have investigated the pressure dependence of the detection sensitivity of CO(2), N(2)O and CH(4) using wavelength modulation spectroscopy (WMS) with distributed feed-back diode lasers in the near infrared region. The spectral line shapes and the background noise of the second harmonics (2f) detec...

Descripción completa

Detalles Bibliográficos
Autores principales: Asakawa, Takashi, Kanno, Nozomu, Tonokura, Kenichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2010
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292140/
https://www.ncbi.nlm.nih.gov/pubmed/22399900
http://dx.doi.org/10.3390/s100504686
_version_ 1782225241869647872
author Asakawa, Takashi
Kanno, Nozomu
Tonokura, Kenichi
author_facet Asakawa, Takashi
Kanno, Nozomu
Tonokura, Kenichi
author_sort Asakawa, Takashi
collection PubMed
description We have investigated the pressure dependence of the detection sensitivity of CO(2), N(2)O and CH(4) using wavelength modulation spectroscopy (WMS) with distributed feed-back diode lasers in the near infrared region. The spectral line shapes and the background noise of the second harmonics (2f) detection of the WMS were analyzed theoretically. We determined the optimum pressure conditions in the detection of CO(2), N(2)O and CH(4), by taking into consideration the background noise in the WMS. At the optimum total pressure for the detection of CO(2), N(2)O and CH(4), the limits of detection in the present system were determined.
format Online
Article
Text
id pubmed-3292140
institution National Center for Biotechnology Information
language English
publishDate 2010
publisher Molecular Diversity Preservation International (MDPI)
record_format MEDLINE/PubMed
spelling pubmed-32921402012-03-07 Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity Asakawa, Takashi Kanno, Nozomu Tonokura, Kenichi Sensors (Basel) Article We have investigated the pressure dependence of the detection sensitivity of CO(2), N(2)O and CH(4) using wavelength modulation spectroscopy (WMS) with distributed feed-back diode lasers in the near infrared region. The spectral line shapes and the background noise of the second harmonics (2f) detection of the WMS were analyzed theoretically. We determined the optimum pressure conditions in the detection of CO(2), N(2)O and CH(4), by taking into consideration the background noise in the WMS. At the optimum total pressure for the detection of CO(2), N(2)O and CH(4), the limits of detection in the present system were determined. Molecular Diversity Preservation International (MDPI) 2010-05-06 /pmc/articles/PMC3292140/ /pubmed/22399900 http://dx.doi.org/10.3390/s100504686 Text en © 2010 by the authors; licensee MDPI, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Asakawa, Takashi
Kanno, Nozomu
Tonokura, Kenichi
Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity
title Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity
title_full Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity
title_fullStr Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity
title_full_unstemmed Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity
title_short Diode Laser Detection of Greenhouse Gases in the Near-Infrared Region by Wavelength Modulation Spectroscopy: Pressure Dependence of the Detection Sensitivity
title_sort diode laser detection of greenhouse gases in the near-infrared region by wavelength modulation spectroscopy: pressure dependence of the detection sensitivity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292140/
https://www.ncbi.nlm.nih.gov/pubmed/22399900
http://dx.doi.org/10.3390/s100504686
work_keys_str_mv AT asakawatakashi diodelaserdetectionofgreenhousegasesinthenearinfraredregionbywavelengthmodulationspectroscopypressuredependenceofthedetectionsensitivity
AT kannonozomu diodelaserdetectionofgreenhousegasesinthenearinfraredregionbywavelengthmodulationspectroscopypressuredependenceofthedetectionsensitivity
AT tonokurakenichi diodelaserdetectionofgreenhousegasesinthenearinfraredregionbywavelengthmodulationspectroscopypressuredependenceofthedetectionsensitivity

Ejemplares similares