Journal
OPTICS LETTERS
Volume 39, Issue 10, Pages 2838-2840Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.002838
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Funding
- National Natural Science Foundation of China [61108076]
- Anhui Provincial Natural Science Foundation [1308085MF91]
- Key Research Project of Anhui Education Department [KJ2011A009]
- 211 Project of Anhui University
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A fiber-optic acoustic pressure sensor based on a large-area nanolayer silver diaphragm is demonstrated with a high dynamic pressure sensitivity of 160 nm/Pa at 4 kHz frequency. The sensor exhibits a noise limited detectable pressure level of 14.5 mu Pa/Hz(1/2). Its high dynamic pressure sensitivity and simple fabrication process make it an attractive tool for acoustic sensing and photo-acoustic spectroscopy. (C) 2014 Optical Society of America
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