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, Jinsong Huang

Research output: Contribution to journalArticle

75 Citations (Scopus)

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 1.6 nm/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.

Original languageEnglish (US)
Pages (from-to)1505-1507
Number of pages3
JournalOptics Letters
Volume37
Issue number9
DOIs
StatePublished - May 1 2012

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diaphragms
silver
fibers
sensitivity
sensors
static pressure
structural health monitoring
resonant frequencies
ultrasonics
vacuum

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

High-sensitivity, high-frequency extrinsic Fabry-Perot interferometric fiber-tip sensor based on a thin silver diaphragm. / Guo, Fawen; Fink, Tom; Han, Ming; Koester, Lucas; Turner, Joseph; Huang, Jinsong.

In: Optics Letters, Vol. 37, No. 9, 01.05.2012, p. 1505-1507.

Research output: Contribution to journalArticle

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