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Quantum cascade laser sensors for online gas chromatography

Wu, Sheng and Deev, Andrei and Tang, Yongchun (2011) Quantum cascade laser sensors for online gas chromatography. In: Quantum Sensing and Nanophotonic Devices VIII. Proceedings of SPIE. No.7945. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 794506. ISBN 978-0-81948-482-6.

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We show that QC laser could improve capillary Gas Chromatography Infrared spectroscopy resolution significantly, i.e. both Doppler limited and Doppler free resolution could be achieved. To achieve these goals, we report our latest efforts in characterizing the tuning and noise properties of Quantum Cascade (QC) lasers; novel schemes on modulation to gain largest tuning range as well as on stabilizing and locking the QC lasers are proposed, and results presented.

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Additional Information:© 2011 SPIE Society of Photo-Optical Instrumentation Engineers. We gratefully acknowledge the helpful discussions on WGMs with Dr. Ivan Grudinin, Dr. Andrey Matsko and Dr. Vladmir Ilchenko, and also on DFB QC lasers with Dr. Jenyu Fan and Dr. Xiaojun Wang of Adtech Optics.
Subject Keywords:Current tuning, Mid Infrared, Whispering Gallery Mode, Quantum Cascade Laser, Saturated absorption, hollow waveguide
Series Name:Proceedings of SPIE
Issue or Number:7945
Record Number:CaltechAUTHORS:20161101-065131280
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Official Citation:Sheng Wu ; Andrei Deev ; Yongchun Tang; Quantum cascade laser sensors for online gas chromatography. Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 794506 (January 24, 2011); doi:10.1117/12.871398.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71641
Deposited By: Ruth Sustaita
Deposited On:01 Nov 2016 17:50
Last Modified:03 Oct 2019 16:09

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