title: Simultaneous photoacoustic and optically mediated ultrasound microscopy: phantom study.
abstract: An experimental setup for combined photoacoustic (PA) and optically mediated ultrasound (US) microscopy is presented. A spherically focused 35 MHz polyvinylidene fluoride (PVDF) ultrasonic detector with a numerical aperture of 0.28, a focal distance of 9 mm, and a bandwidth (-6 dB level) of 24 MHz was used to obtain PA and US data with a 3 mm imaging depth. A fiber-optic system was employed to deliver laser excitation pulses from a tunable laser to the studied medium. A single optical pulse was used to form both PA and US A-scans. The probing US pulses were generated thermoelastically due to absorption of backscattered laser radiation by the metalized surface of a PVDF film.
authors.affiliation: Institute of Applied Physics, 46 Ul’yanov Street, Nizhny Novgorod 603950, Russia. Pavel.Subochev@gmail.com
authors.forename: Pavel
authors.initials: P
authors.lastname: Subochev
authors.forename: Alexey
authors.initials: A
authors.lastname: Katichev
authors.forename: Andrey
authors.initials: A
authors.lastname: Morozov
authors.forename: Anna
authors.initials: A
authors.lastname: Orlova
authors.forename: Vladislav
authors.initials: V
authors.lastname: Kamensky
authors.forename: Ilya
authors.initials: I
authors.lastname: Turchin
mesh_terms: D000362:Agar; D008853:Microscopy / Q000295:instrumentation*; D055096:Optical Devices; D019047:Phantoms, Imaging; D061088:Photoacoustic Techniques; D013997:Time Factors; D014465:Ultrasonics
chemical_list: D000362:Agar