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

Autor:	Tom Fink, Joseph A. Turner, Fawen Guo, Jinsong Huang, Ming Han, Lucas W. Koester
Rok vydání:	2012
Předmět:	Interferometry Optics Materials science business.industry Fiber optic sensor Diaphragm (mechanical device) Static pressure Fiber Thin film business Pressure sensor Atomic and Molecular Physics and Optics Fabry–Pérot interferometer
Zdroj:	Optics Letters. 37:1505
ISSN:	1539-4794 0146-9592
DOI:	10.1364/ol.37.001505
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8572a06bdd8cbe058fcf3b5f333e4c06 https://doi.org/10.1364/ol.37.001505 Zobrazit plný text záznamu