Chemical sensing with pulsed QC-DFB lasers operating at 15.6 μm
Kosterev, A. A.
Curl, R. F.
Tittel, F. K.
Date de parution
Applied Physics B: Lasers and Optics, Springer, 2002/75/2-3/351-357
Pulsed thermoelectrically cooled QC-DFB lasers operating at 15.6 μm were characterized for spectroscopic gas sensing applications. A new method for wavelength scanning based on repetition rate modulation was developed. A non-wavelength-selective pyroelectric detector was incorporated in the sensor configuration giving the advantage of room-temperature operation and low cost. Absorption lines of CO<sub>2</sub> and H<sub>2</sub>O were observed in ambient air, providing information about the concentration of these species.
Type de publication
Resource Types::text::journal::journal article
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