scholarly journals Recent Advances in Trace Gas Detection Using Quantum and Interband Cascade Lasers

2006 ◽  
Vol 34 (4) ◽  
pp. 275-282 ◽  
Author(s):  
Frank K. TITTEL ◽  
Yury BAKHIRKIN ◽  
Anatoliy A. KOSTEREV ◽  
Gerard WYSOCKI
Keyword(s):  
Gas Detection ◽  
Trace Gas ◽  
Trace Gas Detection ◽  
Recent Advances ◽  
Interband Cascade Lasers ◽  
Cascade Lasers

scholarly journals DIRECT FREQUENCY COMB CAVITY ENHANCED SPECTROSCOPY FOR TRACE GAS DETECTION USING MID-INFRARED INTERBAND CASCADE LASERS

2021 ◽  
Author(s):  
Charles Markus ◽  
Mitchio Okumura ◽  
Mahmood Bagheri ◽  
Lukasz Sterczewski ◽  
Douglas Ober ◽  
...  
Keyword(s):  
Frequency Comb ◽  
Gas Detection ◽  
Trace Gas ◽  
Trace Gas Detection ◽  
Mid Infrared ◽  
Interband Cascade Lasers ◽  
Cascade Lasers

Photoacoustic spectroscopy for trace gas detection with cryogenic and room-temperature continuous-wave quantum cascade lasers

Open Physics ◽  
2010 ◽  
Vol 8 (2) ◽  
Author(s):  
Virginie Zeninari ◽  
Agnès Grossel ◽  
Lilian Joly ◽  
Thomas Decarpenterie ◽  
Bruno Grouiez ◽  
...  
Keyword(s):  
Detection Limit ◽  
Room Temperature ◽  
Quantum Cascade Lasers ◽  
Gas Detection ◽  
Trace Gas ◽  
Atmospheric Gases ◽  
Trace Gas Detection ◽  
Quantum Cascade ◽  
Cascade Lasers

AbstractThe main characteristics that a sensor must possess for trace gas detection and pollution monitoring are high sensitivity, high selectivity and the capability to perform in situ measurements. The photacoustic Helmholtz sensor developed in Reims, used in conjunction with powerful Quantum Cascade Lasers (QCLs), fulfils all these requirements. The best cell response is # 1200 V W−1 cm and the corresponding ultimate sensitivity is j 3.3 × 10−10 W cm−11 Hz−11/2. This efficient sensor is used with mid-infrared QCLs from Alpes Lasers to reach the strong fundamental absorption bands of some atmospheric gases. A first cryogenic QCL emitting at 7.9 μm demonstrates the detection of methane in air with a detection limit of 3 ppb. A detection limit of 20 ppb of NO in air is demonstrated using another cryogenic QCL emitting in the 5.4 μm region. Real in-situ measurements can be achieved only with room-temperature QCLs. A room-temperature QCL emitting in the 7.9 μm region demonstrates the simultaneous detection of methane and nitrous oxide in air (17 and 7 ppb detection limit, respectively). All these reliable measurements allow the estimated detection limit for various atmospheric gases using quantum cascade lasers to be obtained. Each gas absorbing in the infrared may be detected at a detection limit in the ppb or low-ppb range.

Continuous-wave quantum cascade lasers absorption spectrometers for trace gas detection in the atmosphere

Laser Physics ◽  
2011 ◽  
Vol 21 (4) ◽  
pp. 805-812 ◽  
Author(s):  
L. Joly ◽  
V. Zéninari ◽  
T. Decarpenterie ◽  
J. Cousin ◽  
B. Grouiez ◽  
...  
Keyword(s):  
Continuous Wave ◽  
Quantum Cascade Lasers ◽  
Gas Detection ◽  
Trace Gas ◽  
Trace Gas Detection ◽  
Quantum Cascade ◽  
Cascade Lasers

scholarly journals Photoacoustic Spectroscopy with Quantum Cascade Lasers for Trace Gas Detection

Sensors ◽  
2006 ◽  
Vol 6 (10) ◽  
pp. 1411-1419 ◽  
Author(s):  
Angela Elia ◽  
Cinzia Di Franco ◽  
Pietro Lugarà ◽  
Gaetano Scamarcio
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Quantum Cascade Lasers ◽  
Gas Detection ◽  
Trace Gas ◽  
Trace Gas Detection ◽  
Quantum Cascade ◽  
Cascade Lasers

Spectroscopic trace gas detection with pulsed quantum cascade lasers

2002 ◽  
Author(s):  
Anatoliy Kosterev ◽  
Frank K. Tittel ◽  
Shawn Wehe ◽  
David M. Sonnenfroh ◽  
Mark G. Allen ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Gas Detection ◽  
Trace Gas ◽  
Trace Gas Detection ◽  
Quantum Cascade ◽  
Cascade Lasers
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