TY - JOUR
T1 - Optical phase contrast mapping of highly focused ultrasonic fields
AU - Harigane, Soichiro
AU - Miyasaka, Ryo
AU - Yoshizawa, Shin
AU - Umemura, Shin Ichiro
PY - 2013/7
Y1 - 2013/7
N2 - The most common method of measuring an ultrasonic pressure field is a hydrophone scan. However, this method has a long scanning time and disturbs the acoustic field. In this study, we used an optical phase contrast method for the measurement. Because this method uses light, fast and noninvasive measurement can be performed. The projections of an ultrasonic pressure field were obtained with a charge-coupled device (CCD) camera, and the three-dimensional (3D) acoustic pressure field was reconstructed using a computed tomography (CT) algorithm from these projections. The result was compared with that of hydrophone measurement and demonstrated the successful reconstruction of a focal ultrasonic pressure field.
AB - The most common method of measuring an ultrasonic pressure field is a hydrophone scan. However, this method has a long scanning time and disturbs the acoustic field. In this study, we used an optical phase contrast method for the measurement. Because this method uses light, fast and noninvasive measurement can be performed. The projections of an ultrasonic pressure field were obtained with a charge-coupled device (CCD) camera, and the three-dimensional (3D) acoustic pressure field was reconstructed using a computed tomography (CT) algorithm from these projections. The result was compared with that of hydrophone measurement and demonstrated the successful reconstruction of a focal ultrasonic pressure field.
UR - http://www.scopus.com/inward/record.url?scp=84881016743&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881016743&partnerID=8YFLogxK
U2 - 10.7567/JJAP.52.07HF07
DO - 10.7567/JJAP.52.07HF07
M3 - Article
AN - SCOPUS:84881016743
VL - 52
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7 PART 2
M1 - 07HF07
ER -