Lock-in Amplifier for Pulse-Driven Quantum Cascade Lasers Gas Detection System

2016 ◽  
Vol 45 (8) ◽  
pp. 814001
Author(s):  
苗春壮 MIAO Chun-zhuang ◽  
蔺百杨 LIN Bai-yang ◽  
党敬民 DANG Jing-min ◽  
李春光 LI Chun-guang ◽  
王利军 WANG Li-jun ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Detection System ◽  
Gas Detection ◽  
Quantum Cascade ◽  
Lock In ◽  
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.

Time-resolved orientation detection system with quantum cascade lasers

2018 ◽  
Vol 89 (7) ◽  
pp. 073101
Author(s):  
Ke Ye ◽  
Xiaowei Chen ◽  
Wenwen Zhang ◽  
Yankun Lv ◽  
Lingpu Meng ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Detection System ◽  
Time Resolved ◽  
Quantum Cascade ◽  
Orientation Detection ◽  
Cascade Lasers

scholarly journals Application of quantum cascade lasers to trace gas detection

2015 ◽  
Vol 63 (2) ◽  
pp. 515-525 ◽  
Author(s):  
Z. Bielecki ◽  
T. Stacewicz ◽  
J. Wojtas ◽  
J. Mikołajczyk
Keyword(s):  
Gas Sensors ◽  
Review Paper ◽  
Quantum Cascade Lasers ◽  
Carbonyl Sulfide ◽  
Gas Detection ◽  
Trace Gas ◽  
Quantum Cascade ◽  
Compact Size ◽  
New Applications ◽  
Cascade Lasers

Abstract The potential of Quantum Cascade Laser technology has been recently harnessed in industry, medicine and military to create a range of original infrared gas sensors. These sensors have opened up many new applications due to compact size, excellent sensitivity, robust construction and low power requirements. They rely on infrared absorption spectroscopy to determine identity and quantity of gases. The measurement of these gases has relied on different technologies including multi-pass spectroscopy, photoacoustic spectroscopy, cavity ring down spectroscopy, and their various modifications. In this review paper some technologies are described in terms of its advantages/disadvantages in many application. The results of own works about methane, ammonia, nitric oxide, nitrous oxide, and carbonyl sulfide detection are presented as well

Pulse Wavelength Scan of Room-Temperature Mid-Infrared Distributed Feedback Quantum Cascade Lasers for N 2 O Gas Detection

2006 ◽  
Vol 23 (7) ◽  
pp. 1780-1783 ◽  
Author(s):  
Zhang Yong-Gang ◽  
Xu Gang-Yi ◽  
Li Ai-Zhen ◽  
Li Yao-Yao ◽  
Gu Yi ◽  
...  
Keyword(s):  
Room Temperature ◽  
Quantum Cascade Lasers ◽  
Distributed Feedback ◽  
Gas Detection ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cascade Lasers

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

Widely tunable quantum cascade lasers with coupled cavities for gas detection

2010 ◽  
Vol 97 (18) ◽  
pp. 181111 ◽  
Author(s):  
Peter Fuchs ◽  
Jochen Seufert ◽  
Johannes Koeth ◽  
Julia Semmel ◽  
Sven Höfling ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Gas Detection ◽  
Coupled Cavities ◽  
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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