Differential absorption lidar at 1.67 μm for the detection of methane gas leakage

K. Ikuta, N. J. Vasa, Y. Oki, M. Maeda, M. Uchiumi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Differential absorption lidar (DIAL) is very useful for remote sensing of atmospheric molecules. Methane (CH4) is one of the greenhouse gases and for the DIAL experiments, the absorption around 3.39 μm is usually used. Continuous monitoring of the flamable CH4 gas leakage is very important especially in a factory or along a gas pipe line. In the case of such a high concentration monitoring, absorption around 1.67 pm can be used. In this paper, we developed a DIAL system to detect CH4 at a wavelength of 1.67 μm Infrared (IR) laser source at 1.67 μm is easily obtainable and fast photodetectors, such as InGaAs PIN photodiodes are available in this range.

Original languageEnglish
Title of host publicationCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages274-275
Number of pages2
ISBN (Electronic)0780356616, 9780780356610
DOIs
Publication statusPublished - 1999
Event1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999 - Seoul, Korea, Republic of
Duration: Aug 30 1999Sep 3 1999

Publication series

NameCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
Volume2

Other

Other1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
CountryKorea, Republic of
CitySeoul
Period8/30/999/3/99

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications
  • Physics and Astronomy(all)

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