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Conferences > CLEO > 2003 > CTuX > CTuX3
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
  • Technical Digest (Optica Publishing Group, 2003),
  • paper CTuX3

Sensitive detection of methane via absorption spectroscopy using a mid-infrared DFB interband cascade laser

David M. Sonnenfroh, Seonkyung Lee, Joel M. Hensley, Mark G. Allen, John Bradshaw, John Pham, John Bruno, and Donald Wortman

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Abstract

We have demonstrated sensitive detection of methane using an absorption spectrometer based on a mid-infrared DFB Interband Cascade laser at 3.47 microns. Using balanced ratiometric detection, we demonstrated a minimum measurable peak absorption of 4 × 10−4 for the line at 2878.362 cm−1.

© 2003 Optical Society of America

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