Surface emitting quantum cascade lasers for sensing and medical diagnosis

Jun-qi Liu; Jian-yan Chen; Wan-feng Liu; Wan-hong Guo; Yu-chao Jiang; Feng-qi Liu; Lu Li; Li-jun Wang; Zhan-guo Wang

doi:10.1117/12.900189

19 August 2011 Surface emitting quantum cascade lasers for sensing and medical diagnosis

Jun-qi Liu, Jian-yan Chen, Wan-feng Liu, Wan-hong Guo, Yu-chao Jiang, Feng-qi Liu, Lu Li, Li-jun Wang, Zhan-guo Wang

Proceedings Volume 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging; 81921P (2011) https://doi.org/10.1117/12.900189
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

We designed and demonstrated a series of surface emitting quantum cascade lasers within the range of 4.5-9.0μm with different kinds of grating structure. The 2-order Bragg grating structure were exposed on top of the materials by means of optical lithography or holography and realized by deeper wet chemical etching. Many of these devices exhibit high performance in single-mode characteristics, operation temperature, and far field characteristics. These results give a cheerful prospect for the sensing and medical diagnosis application in the near future.

Citation Download Citation

Jun-qi Liu, Jian-yan Chen, Wan-feng Liu, Wan-hong Guo, Yu-chao Jiang, Feng-qi Liu, Lu Li, Li-jun Wang, and Zhan-guo Wang "Surface emitting quantum cascade lasers for sensing and medical diagnosis", Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81921P (19 August 2011); https://doi.org/10.1117/12.900189

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