scholarly journals The SPIRIT airborne instrument: a three-channel infrared absorption spectrometer with quantum cascade lasers for in situ atmospheric trace-gas measurements

2017 ◽  
Vol 123 (9) ◽  
Author(s):  
Valéry Catoire ◽  
Claude Robert ◽  
Michel Chartier ◽  
Patrick Jacquet ◽  
Christophe Guimbaud ◽  
...  
Keyword(s):  
Infrared Absorption ◽  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Gas Measurements ◽  
Atmospheric Trace Gas ◽  
Cascade Lasers ◽  
Absorption Spectrometer

Atmospheric trace gas measurements using a dual quantum-cascade laser mid-infrared absorption spectrometer

2005 ◽  
Author(s):  
Rodrigo Jimenez ◽  
Scott Herndon ◽  
Joanne H. Shorter ◽  
David D. Nelson ◽  
J. B. McManus ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Infrared Absorption ◽  
Trace Gas ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Gas Measurements ◽  
Atmospheric Trace Gas ◽  
Dual Quantum ◽  
Absorption Spectrometer

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.

Applications of quantum cascade lasers for sensitive trace gas measurements of CO, CH4, N2O and HCHO

2008 ◽  
Vol 92 (3) ◽  
pp. 419-430 ◽  
Author(s):  
C.L. Schiller ◽  
H. Bozem ◽  
C. Gurk ◽  
U. Parchatka ◽  
R. Königstedt ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Gas Measurements ◽  
Cascade Lasers

Trace gas measurements using optically resonant cavities and quantum cascade lasers operating at room temperature

2008 ◽  
Vol 104 (9) ◽  
pp. 093115 ◽  
Author(s):  
S. Welzel ◽  
G. Lombardi ◽  
P. B. Davies ◽  
R. Engeln ◽  
D. C. Schram ◽  
...  
Keyword(s):  
Room Temperature ◽  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Resonant Cavities ◽  
Quantum Cascade ◽  
Gas Measurements ◽  
Cascade Lasers

Recent progress in high precision atmospheric trace gas instruments using mid-infrared quantum cascade lasers

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
J. Barry McManus ◽  
Mark S. Zahniser ◽  
David D. Nelson ◽  
R. M. McGovern ◽  
M. Agnese
Keyword(s):  
High Precision ◽  
Recent Progress ◽  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Atmospheric Trace Gas ◽  
Cascade Lasers

QUALITAS: A mid-infrared spectrometer for sensitive trace gas measurements based on quantum cascade lasers in CW operation

2005 ◽  
Vol 76 (7) ◽  
pp. 075102 ◽  
Author(s):  
R. Kormann ◽  
R. Königstedt ◽  
U. Parchatka ◽  
J. Lelieveld ◽  
H. Fischer
Keyword(s):  
Quantum Cascade Lasers ◽  
Trace Gas ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cw Operation ◽  
Infrared Spectrometer ◽  
Gas Measurements ◽  
Cascade Lasers

Application of quantum cascade lasers to trace gas analysis

2007 ◽  
Vol 90 (2) ◽  
pp. 165-176 ◽  
Author(s):  
A. Kosterev ◽  
G. Wysocki ◽  
Y. Bakhirkin ◽  
S. So ◽  
R. Lewicki ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Gas Analysis ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Trace Gas Analysis ◽  
Cascade Lasers
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