8 June 2017 Fiber interrogated and graphene enhanced Brillouin optomechanical microresonator for ultra-sensitive gas detection
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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.
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B. Yao, C. Yu, Y. Wu, S. Huang, H. Wu, Y. Gong, Y. Chen, 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); doi: 10.1117/12.2276137; https://doi.org/10.1117/12.2276137
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