Fiber interrogated and graphene enhanced Brillouin optomechanical microresonator for ultra-sensitive gas detection

B. Yao; C. Yu; Y. Wu; S. Huang; H. Wu; Y. Gong; Y. Chen; Y. Rao

doi:10.1117/12.2276137

8 June 2017 Fiber interrogated and graphene enhanced Brillouin optomechanical microresonator for ultra-sensitive gas detection

B. Yao, C. Yu, Y. Wu, S. Huang, H. Wu, Y. Gong, Y. Chen, Y. Rao

Author Affiliations +

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103239R (2017) https://doi.org/10.1117/12.2276137
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

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.

Citation Download Citation

B. Yao, C. Yu, Y. Wu, S. Huang, H. Wu, Y. Gong, Y. Chen, and Y. Rao "Fiber interrogated and graphene enhanced Brillouin optomechanical microresonator for ultra-sensitive gas detection", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239R (8 June 2017); https://doi.org/10.1117/12.2276137

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