Title :
P6A-4 A Co-Axial Scanning Acoustic and Photoacoustic Microscope
Author :
Vaithilingam, S. ; Te-Jen Ma ; Furukawa, Yudai ; De La Zerda, A. ; Oralkan, O. ; Kamaya, Aya
Author_Institution :
Stanford Univ., Stanford
Abstract :
A scanning acoustic and photoacoustic microscope is demonstrated. The laser illumination and ultrasound detection in the system are co-axial. Pulsed light from a tunable optical parametric oscillator (OPO) laser is delivered to the scan tank via optical fiber. Multiple acoustic transducers with center frequencies varying from 5 MHz to 25 MHz are utilized. Images of a pig kidney (ex vivo) and a microcalcification phantom (eggshells embedded in agarose) are shown.
Keywords :
acoustic microscopy; biological tissues; biomechanics; biomedical measurement; biomedical optical imaging; biomedical transducers; biomedical ultrasonics; kidney; laser applications in medicine; mammography; optical microscopy; optical parametric oscillators; phantoms; photoacoustic effect; ultrasonic transducers; agarose gel; breast microcalcification phantom; co-axial scanning acoustic microscope; eggshell fragments; ex vivo analysis; frequency 5 MHz to 25 MHz; laser illumination; mechanical structure; multiple acoustic transducers; photoacoustic microscope; pig kidney images; tunable optical parametric oscillator laser; ultrasound detection; Acoustic pulses; Acoustic signal detection; Fiber lasers; Lighting; Microscopy; Optical fibers; Optical pulses; Oscillators; Tunable circuits and devices; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2007. IEEE
Conference_Location :
New York, NY
Print_ISBN :
978-1-4244-1384-3
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2007.607
