NDLI: High resolution imaging with a polyimide-etalon all-optical ultrasound transducer

Content Provider	IEEE Xplore Digital Library
Author	Sheaff, C. Ashkenazi, S.
Copyright Year	2012
Description	Author affiliation: Dept. of Biomed. Eng., Univ. of Minnesota-Twin Cities, Minneapolis, MN, USA (Sheaff, C.; Ashkenazi, S.)
Abstract	We previously reported the performance of an all optical high-frequency ultrasound transducer consisting of a UV absorbing polyimide film integrated into an etalon receiver. In this work, we demonstrate the imaging capabilities of a synthetic array of these elements in two different configurations: (1) fixed transmitter, scanning receiver and (2) fixed receiver, scanning transmitter. The first configuration involved a 2 mm transmitting element and a 33 μm receiver element scanned over a 2 × 2 mm aperture at 30 μm increments. The reconstruction of two 50 μm wires placed at 1.2 mm and 4.9 mm depth demonstrated an axial resolution of 41 μm and 42 μm, respectively, and a lateral resolution of 73 μm and 137 μm, respectively. The second configuration involved a fixed, 33 μm receiver and a 200 μm transmitting element scanned over a 2 × 0.2 mm aperture at 20 μm increments. Imaging of an 80 μm wire placed at 4.3 mm depth yielded an axial resolution of 37 μm and a lateral resolution of 145 μm.
Starting Page	1063
Ending Page	1066
File Size	847210
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Receivers Optical transmitters Imaging Image resolution Ultrasonic imaging Mirrors Transducers transducer etalon Fabry-Pérot photoacoustic
Content Type	Text
Resource Type	Article

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