Ultrasound (US) transducer of higher operating frequency detects photoacoustic (PA) signals due to the contrast in elastic property | Zendy

Mayanglambam Suheshkumar Singh | Zendy; Huabei Jiang | Zendy

Open Access

Ultrasound (US) transducer of higher operating frequency detects photoacoustic (PA) signals due to the contrast in elastic property

Author(s) -

Mayanglambam Suheshkumar Singh,

Huabei Jiang

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4942106

Subject(s) - transducer , materials science , photoacoustic doppler effect , acoustics , photoacoustic imaging in biomedicine , ultrasound , photoacoustic effect , ultrasonic sensor , optics , contrast (vision) , physics

We report our study that shows selection in operating frequency of US-transducer used for boundary detection of PA-signals, which result due to the contrast in elastic property distribution (E(r→)) in sample material other than that of optical absorption coefficient (μa). Studies were carried out, experimentally, in tissue-mimicking Agar phantoms employing acoustic resolution photoacoustic microscopy (AR-PAM) system as an imaging unit. In the experiments, various transducers having different operating frequencies, ranging from 1MHz to 50MHz, were employed for studying frequency response of the photoacoustic signals. The study shows that, for detecting photoacoustic signals due to the contrast in elastic property, ultrasound transducer with higher operating frequency (∼50MHz) is demanded

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