Digital reflection-mode time-reversed ultrasonically encoded (TRUE) optical focusing

Yuta Suzuki; Jian Wei Tay; Qiang Yang; Lihong Wang

doi:10.1117/12.2037952

3 March 2014 Digital reflection-mode time-reversed ultrasonically encoded (TRUE) optical focusing

Yuta Suzuki, Jian Wei Tay, Qiang Yang, Lihong Wang

Proceedings Volume 8943, Photons Plus Ultrasound: Imaging and Sensing 2014; 89431B (2014) https://doi.org/10.1117/12.2037952
Event: SPIE BiOS, 2014, San Francisco, California, United States

Abstract

To achieve localized light delivery beyond turbid layers, TRUE optical focusing has been previously implemented by both analog and digital devices. The digital scheme offers a higher energy gain than the analog version. In many biological applications, the reflection-mode configuration, which uses backscattered light from the sample, is more suitable than the transmission-mode configuration. Although reflection-mode analog TRUE focusing has been demonstrated, its digital implementation has not been explored. Here, we report a reflection-mode digital TRUE focusing to concentrate light through a turbid layer. Further, by simply moving the ultrasound focus, we show the system's dynamic focusing capability.

Citation Download Citation

Yuta Suzuki, Jian Wei Tay, Qiang Yang, and Lihong Wang "Digital reflection-mode time-reversed ultrasonically encoded (TRUE) optical focusing", Proc. SPIE 8943, Photons Plus Ultrasound: Imaging and Sensing 2014, 89431B (3 March 2014); https://doi.org/10.1117/12.2037952

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

Includes PDF, HTML & Video, when available