A high-frequency modulated turnable diode laser absorption spectrometer for measurements of CO(sub 2), CH(sub 4), N(sub 2)O, and CO in air samples of a few cm(sup 3)

Gulluk, T.; Wagner, H.E.; Slemr, F.
January 1997
Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p230
Academic Journal
Describes the development of a high-frequency modulated tunable diode laser absorption spectrometer for the determination of carbon dioxide, methane, nitrous oxide, and carbon monoxide in air samples extracted from ice cores. Spectrometer design; Principle of frequency modulation operation; Detection electronics; Stability and detection limits of the FM spectrometer.


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