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Accepted (AM)Open Access (License Unspecified), Open
Journal article
Thin film metal coated fiber optic hydrophone probe
Applied optics. Optical technology and biomedical optics, v 48(31), pp G77-G82
01 Nov 2009
PMID: 19881652
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Our purpose is to improve the performance sensitivity of a fiber sensor used as a fiber optic hydrophone probe (FOHP) by the addition of nanoscale thin film gold coating. The fiber is designed to provide a uniform and spatial averaging free response up to 100 MHz by etching down to an active diameter of approximately 9 mum. The performance sensitivity of straight cleaved (i.e., full size core and cladding) uncoated, tapered uncoated, and tapered thin film gold-coated fiber sensors was compared in the frequency range from 1.5 to 20 MHz in the presence of acoustic amplitude pressure levels as high as 6 MPa. An unprecedented voltage sensitivity of -245 dB relative to 1 V/muPa (560 mV/MPa) was measured for a thin film gold-coated FOHP by optimizing the gold coating thickness.
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Details
- Title
- Thin film metal coated fiber optic hydrophone probe
- Creators
- Rupa Gopinath Minasamudram - Drexel UniversityPiyush Arora - Drexel UniversityGaurav Gandhi - Drexel UniversityAfshin S Daryoush (Corresponding Author) - Drexel UniversityMahmoud A El-Sherif - Photonics Labs Inc (United States, Philadelphia)Peter A Lewin - Drexel University
- Publication Details
- Applied optics. Optical technology and biomedical optics, v 48(31), pp G77-G82
- Publisher
- Optica (OSA); United States
- Number of pages
- 6
- Grant note
- R01 EB007117 / NIBIB NIH HHS R01EB007117 / NIBIB NIH HHS R01 EB007117-03 / NIBIB NIH HHS
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering; School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000271374000016
- Scopus ID
- 2-s2.0-70449669093
- Other Identifier
- 991014877883704721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Optics