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Proceedings Paper

Fiber interrogated and graphene enhanced Brillouin optomechanical microresonator for ultra-sensitive gas detection
Author(s): B. Yao; C. Yu; Y. Wu; S. Huang; H. Wu; Y. Gong; Y. Chen; Y. Rao
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Paper Abstract

Forward phase-matched Brillouin optomechanical resonance, excited by a tapered fiber, in a graphene inner-deposited whispering-gallery-mode microfluidic cavity, is demonstrated for the first time. The generated Brillouin optomechanical modes with Q factor ≈ 47000 show extremely high sensitivity (200kHz/ppm) for absolute gas detection based on frequency variation, achieving a detection limit down to 1 ppb and a dynamic range >105 orders of magnitude.

Paper Details

Date Published: 8 June 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239R (8 June 2017); doi: 10.1117/12.2276137
Show Author Affiliations
B. Yao, Univ. of Electronic Science and Technology of China (China)
Univ. of California, Los Angeles (United States)
C. Yu, Univ. of Electronic Science and Technology of China (China)
Y. Wu, Univ. of Electronic Science and Technology of China (China)
S. Huang, Univ. of California, Los Angeles (United States)
H. Wu, Univ. of Electronic Science and Technology of China (China)
Y. Gong, Univ. of Electronic Science and Technology of China (China)
Y. Chen, Univ. of Electronic Science and Technology of China (China)
Y. Rao, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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