Title :
Tunable mid-infrared laser-based gas sensors: new technologies and applications
Author :
Lancaster, D.G. ; Tittel, Frank K. ; Richter, D. ; Petrov, K.P. ; Curl, R.F.
Author_Institution :
Rice Quantum Inst., Rice Univ., Houston, TX, USA
Abstract :
Summary form only given. This work describes the design and performance characteristics of room-temperature mid-infrared diode-pumped sensors capable of either single or multicomponent real-time trace gas detection in ambient air. The difference-frequency-generation based sensor technology employs periodically poled lithium niobate crystals with multiple grating periods pumped by two single-frequency solid-state lasers and a thermoelectrically cooled HgCdTe infrared detector.
Keywords :
gas sensors; infrared detectors; infrared spectroscopy; laser tuning; optical frequency conversion; optical sensors; semiconductor lasers; spectrochemical analysis; HgCdTe; LiNbO/sub 3/; difference-frequency-generation based; diode-pumped sensors; infrared detector; multicomponent real-time trace gas detection; multiple grating periods; open path configuration; performance characteristics; periodically poled lithium niobate; sensor design; single-component real-time trace gas detection; tunable mid-infrared laser-based gas sensors; Crystals; Diodes; Gas detectors; Gas lasers; Infrared sensors; Lithium niobate; Pump lasers; Sensor phenomena and characterization; Thermal sensors; Tunable circuits and devices;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.675909
