Chin. Phys. Lett.  2006, Vol. 23 Issue (7): 1780-1783    DOI:
Original Articles |
Pulse Wavelength Scan of Room-Temperature Mid-Infrared Distributed Feedback Quantum Cascade Lasers for N2O Gas Detection
ZHANG Yong-Gang;XU Gang-Yi;LI Ai-Zhen;LI Yao-Yao;GU Yi;LIU Sheng;WEI Lin
State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050
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ZHANG Yong-Gang, XU Gang-Yi, LI Ai-Zhen et al  2006 Chin. Phys. Lett. 23 1780-1783
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Abstract The tunable diode laser absorption spectroscopy under a pulse wavelength scan scheme is adapted to home-made room-temperature mid-infrared distributed feedback quantum cascade lasers; and identification of N2O spectral fingerprint is demonstrated experimentally. By driving the laser at 800ns pulse duration, a wave number tuning of about 1.6cm-1 is produced, which make both 1289.04cm-1 and 1289.86cm-1 absorption fingerprints of N2O gas to be definitely assigned. The measured relative absorption intensity is consistent with the HITRAN data precisely.
Keywords: 42.55.Px      85.60.Bt      42.62.Fi      51.70.+f     
Published: 01 July 2006
PACS:  42.55.Px (Semiconductor lasers; laser diodes)  
  85.60.Bt (Optoelectronic device characterization, design, and modeling)  
  42.62.Fi (Laser spectroscopy)  
  51.70.+f (Optical and dielectric properties)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I7/01780
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ZHANG Yong-Gang
XU Gang-Yi
LI Ai-Zhen
LI Yao-Yao
GU Yi
LIU Sheng
WEI Lin
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