Design, fabrication and testing of a dual-band photoacoustic transducer
Journal
Ultrasonic Imaging
Journal Volume
30
Journal Issue
4
Pages
217-227
Date Issued
2008-10
Author(s)
Abstract
Combining photoacoustic and ultrasonic imaging allows both optical and acoustic properties to be displayed simultaneously. In this paper, we describe a dual-band transducer for implementing such a multimodality imaging setup. The transducer exhibits two frequency bands so that it matches the frequency of interest in both imaging methods. An optical fiber is included in the center so that it is inherently coregistered. The transducer was fabricated from lithium niobate and comprises two concentric rings whose center frequencies are 4.9 MHz and 14.8 MHz. Pulse-echo measurements and phantom imaging were performed to demonstrate its performance characteristics. Copyright 2008/2009 by Dynamedia, Inc. All rights of reproduction in any form reserved.
Subjects
Dual-band transducer; Multimodality imaging; Photoacoustics
SDGs
Other Subjects
Acoustic properties; Niobium compounds; Optical fiber fabrication; Optical fibers; Photoacoustic effect; Ultrasonic imaging; Center frequency; Concentric rings; Dual Band; Lithium niobate; Multi-modality imaging; Performance characteristics; Phantom imaging; Pulse echo measurements; Transducers; glass fiber; lithium; acoustics; article; diagnostic imaging; dielectric constant; dual band photoacoustic transducer; excitation contraction coupling; frequency modulation; image display; image quality; mathematical computing; piezoelectricity; product development; pulse generator; signal detection; signal processing; transducer
Type
journal article