Optoacoustic microscopy system based on an off-axis parabolic reflector

Dmitri Tsyboulski; André Conjusteau; Alexander A. Oraevsky

doi:10.1117/12.911015

23 February 2012 Optoacoustic microscopy system based on an off-axis parabolic reflector

Dmitri Tsyboulski, André Conjusteau, Alexander A. Oraevsky

Author Affiliations +

Proceedings Volume 8223, Photons Plus Ultrasound: Imaging and Sensing 2012; 82230Z (2012) https://doi.org/10.1117/12.911015
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

In this report we introduce a novel experimental design for non-invasive scanning optoacoustic microscopy that utilizes an off-axis parabolic mirror. Such reflector provides ideal and lossless conversion of a spherical wavefront into a plane wave and enables diffraction-limited ultrasound focusing. We have designed and build a custom broadband transducer with 0-19 MHz bandwidth and nominal sensitivity of 15 μV/Pa. With 17 dB amplification and noise level of ~ 1.6 mV the estimated sensitivity limit of our experimental setup is 15 Pa. Using the reflector with numerical aperture of 0.5, we have demonstrated lateral resolution limit of ~ 100 micrometers in test phantoms.

Citation Download Citation

Dmitri Tsyboulski, André Conjusteau, and Alexander A. Oraevsky "Optoacoustic microscopy system based on an off-axis parabolic reflector", Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 82230Z (23 February 2012); https://doi.org/10.1117/12.911015

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE