@inproceedings{b11f1b99fed941b58ca0f47ff6765fb3,
title = "Towards precision measurements of methane with interband cascade lasers",
abstract = "Measurement of the isotopic composition of atmospheric methane is a valuable tool for understanding the sources and sinks of the global carbon budget. One promising carbon isotope ratio measurement technology is optical spectroscopy using inter-band cascade (IC) lasers. Ongoing development of these light sources has the goal of providing, from a package operating near room temperature, a single mode laser source in the wavelength range of 3 μm. The spectral features of methane are sufficiently strong at this wavelength that a path length of about 100 m should suffice for measuring 12- and 13-C isotopes in air without pre-concentrating the sample. Experimental IC lasers are described and their use for isotope sensing by wavelength modulation spectroscopy is evaluated.",
keywords = "Infrared, Interband cascade laser, Isotope ratio, Methane",
author = "Chris Hovde and Oh, {Daniel B.} and Zondlo, {Mark A.} and Kim, {Chul Soo} and Mijin Kim and William Bewley and Canedy, {Chadwick L.} and Igor Vurgaftman and Meyer, {Jerry R.} and {Gregory Jones}, S. and Schmidt, {Titania A.R.} and Suzuki, {Kenneth M.}",
year = "2007",
doi = "10.1117/12.734215",
language = "English (US)",
isbn = "9780819469168",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Chemical and Biological Sensors for Industrial and Environmental Monitoring III",
note = "Chemical and Biological Sensors for Industrial and Environmental Monitoring III ; Conference date: 11-09-2007 Through 12-09-2007",
}