Sensitive H2 detection using a new technique of photoacoustic Raman spectroscopy

Yuji Oki; Noriyuki Kawada; Takashi Ogawa; Yoshiteru Abe; Mitsuo Maeda

doi:10.1143/jjap.36.l1172

Sensitive H₂ detection using a new technique of photoacoustic Raman spectroscopy

Yuji Oki, Noriyuki Kawada, Takashi Ogawa, Yoshiteru Abe, Mitsuo Maeda

Department of I&E Visionaries

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3 Citations (Scopus)

Abstract

A new technique of photoacoustic Raman spectroscopy (PARS) is proposed and demonstrated for the detection of trace gas molecules in the atmosphere. No tunable laser is required in the proposed method. Only a fixed-wavelength pulsed laser is used as a light source, and a Raman shifter, filled with the same gas as that to be detected, automatically generates the Raman-shifted radiation required for the detection by PARS. In the detection of trace H₂ gas in the atmospheric pressure mixture with N₂, the detection limit of 3 ppm (3x10^-6 in partial pressure) was obtained using a Q-switched, frequency-doubled Nd:YAG laser.

Original language	English
Pages (from-to)	L1172-L1174
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	36
Issue number	9 A/B
DOIs	https://doi.org/10.1143/jjap.36.l1172
Publication status	Published - Sept 15 1997

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

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10.1143/jjap.36.l1172

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abstract = "A new technique of photoacoustic Raman spectroscopy (PARS) is proposed and demonstrated for the detection of trace gas molecules in the atmosphere. No tunable laser is required in the proposed method. Only a fixed-wavelength pulsed laser is used as a light source, and a Raman shifter, filled with the same gas as that to be detected, automatically generates the Raman-shifted radiation required for the detection by PARS. In the detection of trace H2 gas in the atmospheric pressure mixture with N2, the detection limit of 3 ppm (3x10-6 in partial pressure) was obtained using a Q-switched, frequency-doubled Nd:YAG laser.",

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T1 - Sensitive H2 detection using a new technique of photoacoustic Raman spectroscopy

AU - Oki, Yuji

AU - Kawada, Noriyuki

AU - Ogawa, Takashi

AU - Abe, Yoshiteru

AU - Maeda, Mitsuo

PY - 1997/9/15

Y1 - 1997/9/15

N2 - A new technique of photoacoustic Raman spectroscopy (PARS) is proposed and demonstrated for the detection of trace gas molecules in the atmosphere. No tunable laser is required in the proposed method. Only a fixed-wavelength pulsed laser is used as a light source, and a Raman shifter, filled with the same gas as that to be detected, automatically generates the Raman-shifted radiation required for the detection by PARS. In the detection of trace H2 gas in the atmospheric pressure mixture with N2, the detection limit of 3 ppm (3x10-6 in partial pressure) was obtained using a Q-switched, frequency-doubled Nd:YAG laser.

AB - A new technique of photoacoustic Raman spectroscopy (PARS) is proposed and demonstrated for the detection of trace gas molecules in the atmosphere. No tunable laser is required in the proposed method. Only a fixed-wavelength pulsed laser is used as a light source, and a Raman shifter, filled with the same gas as that to be detected, automatically generates the Raman-shifted radiation required for the detection by PARS. In the detection of trace H2 gas in the atmospheric pressure mixture with N2, the detection limit of 3 ppm (3x10-6 in partial pressure) was obtained using a Q-switched, frequency-doubled Nd:YAG laser.

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Sensitive H₂ detection using a new technique of photoacoustic Raman spectroscopy

Abstract

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