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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 9 — May. 1, 2012
  • pp: 1505–1507

High-sensitivity, high-frequency extrinsic Fabry–Perot interferometric fiber-tip sensor based on a thin silver diaphragm

Fawen Guo, Tom Fink, Ming Han, Lucas Koester, Joseph Turner, and Jinsong Huang  »View Author Affiliations


Optics Letters, Vol. 37, Issue 9, pp. 1505-1507 (2012)
http://dx.doi.org/10.1364/OL.37.001505


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Abstract

We propose and demonstrate a fiber-tip sensor based on an ultra-thin silver diaphragm for highly sensitive and high frequency ultrasonic detection. The diaphragm is prepared by the vacuum thermal deposition method and then transferred to the fiber tip. The sensor demonstrated in this letter has a 300 nm thick diaphragm with an inner diameter of 75 μm, leading to a static pressure sensitivity of 1.6nm/kPa and a resonant frequency of 1.44 MHz. This sensor has potential applications in many fields such as structural health monitoring and medical ultrasonography.

© 2012 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: February 16, 2012
Revised Manuscript: February 28, 2012
Manuscript Accepted: March 5, 2012
Published: April 27, 2012

Virtual Issues
Vol. 7, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Fawen Guo, Tom Fink, Ming Han, Lucas Koester, Joseph Turner, and Jinsong Huang, "High-sensitivity, high-frequency extrinsic Fabry–Perot interferometric fiber-tip sensor based on a thin silver diaphragm," Opt. Lett. 37, 1505-1507 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-9-1505


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