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Proceedings Paper

Integrated optics design concepts applied to high frequency ultrasound detection
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Paper Abstract

A novel application of polymer waveguide microring resonator for high-frequency ultrasound detection is presented. The device consists of a microring optical resonator that is coupled to a straight optical waveguide which serves as both input and output ports. Acoustic waves irradiating the ring waveguide induce strain that causes a change in the effective refractive index of optical waves propagating along the ring. The sharp wavelength dependence of the high Q-factor resonator enhances the optical response to the acoustic strain. High sensitivity has been demonstrated experimentally in the detection of broadband ultrasound pulses from a 10MHz transducer. WDM methods are proposed to extend the technique into an array of microrings for ultrasound imaging applications.

Paper Details

Date Published: 25 April 2005
PDF: 6 pages
Proc. SPIE 5697, Photons Plus Ultrasound: Imaging and Sensing 2005: The Sixth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, (25 April 2005); doi: 10.1117/12.589309
Show Author Affiliations
Shai Ashkenazi, Univ. of Michigan (United States)
Matthew O'Donnell, Univ. of Michigan (United States)
L. Jay Guo, Univ. of Michigan (United States)
Chung-Yen Chao, Univ. of Michigan (United States)


Published in SPIE Proceedings Vol. 5697:
Photons Plus Ultrasound: Imaging and Sensing 2005: The Sixth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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