Ultrawideband 100 kHz-100kMHz ultrasonic detectors for multiscale optoacoustic angiography Текст научной статьи по специальности «Биотехнологии в медицине»

B-I-19

BIOMEDICAL PHOTONICS

Ultrawideband 100 kHz-100kMHz ultrasonic detectors for multiscale

optoacoustic angiography

P. Subochev

Institute of Applied Physics, Russian Academy of Sciences, 603950, 46 Ulyanov str., Nizhny Novgorod, Russia [email protected] ; www.photoacoustics.ru;

We report on the development of piezopolymer ultrasound detectors for optoacoustic (OA) angiography with unique characteristics:

• 0.1-100 MHz receiving frequency band;

• <10 Pa noise equivalent pressure;

• 180-degree angular coverage;

• up to ~1 mm2 apertures.

Using the developed detectors, we demonstrate the true potential of OA technology providing multiscale 30-500 ^m angiography of versatile biological objects at depths up to 7 mm.

ALT'22