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

doi:10.1364/OL.37.001505

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 journal › Article › peer-review

154 Scopus citations

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 language	English (US)
Pages (from-to)	1505-1507
Number of pages	3
Journal	Optics Letters
Volume	37
Issue number	9
DOIs	https://doi.org/10.1364/OL.37.001505
State	Published - May 1 2012

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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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 1.6 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.",

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AU - Fink, Tom

AU - Han, Ming

AU - Koester, Lucas

AU - Turner, Joseph

AU - Huang, Jinsong

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AB - 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.

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

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