Environmental and industrial trace gas sensing using quantum cascade lasers

2019 ◽  
Author(s):  
Lukas Emmenegger ◽  
Morten Hundt ◽  
Manuel Graf ◽  
Philipp Scheidegger ◽  
Herbert Looser ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Trace Gas Sensing ◽  
Cascade Lasers

Trace gas sensing using quantum cascade lasers and optoacoustic detection

2009 ◽  
Author(s):  
Vincenzo Spagnolo ◽  
Angela Elia ◽  
Cinzia Di Franco ◽  
Pietro Mario Lugarà ◽  
Miriam S. Vitiello ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Trace Gas Sensing ◽  
Cascade Lasers

Photoacoustic trace gas sensing with mid-IR quantum cascade lasers

2009 ◽  
Author(s):  
Angela Elia ◽  
Vincenzo Spagnolo ◽  
Cinzia Di Franco ◽  
Pietro Mario Lugara ◽  
Gaetano Scamarcio
Keyword(s):  
Gas Sensing ◽  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Trace Gas Sensing ◽  
Cascade Lasers

High-Performance Quantum Cascade Lasers Grown by Metal-Organic Vapor Phase Epitaxy and Their Applications to Trace Gas Sensing

2008 ◽  
Vol 26 (21) ◽  
pp. 3534-3555 ◽  
Author(s):  
Mariano Troccoli ◽  
Laurent Diehl ◽  
David P. Bour ◽  
Scott W. Corzine ◽  
Nanfang Yu ◽  
...  
Keyword(s):  
Vapor Phase ◽  
High Performance ◽  
Gas Sensing ◽  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Organic Vapor ◽  
Metal Organic ◽  
Trace Gas Sensing ◽  
Cascade Lasers

Single-mode InP-based quantum cascade lasers for applications in trace-gas sensing

2004 ◽  
Author(s):  
Christian Mann ◽  
Quankui Yang ◽  
Frank Fuchs ◽  
Wolfgang Bronner ◽  
Klaus K÷hler ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Quantum Cascade Lasers ◽  
Single Mode ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Trace Gas Sensing ◽  
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.

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