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High-efficiency time-reversed ultrasonically encoded optical focusing using a large-area photorefractive polymer

Suzuki, Yuta and Lai, Puxiang and Xu, Xiao and Wang, Lihong (2013) High-efficiency time-reversed ultrasonically encoded optical focusing using a large-area photorefractive polymer. In: Photons Plus Ultrasound: Imaging and Sensing 2013. Proceedings of SPIE. No.8581. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 85811G. ISBN 9780819493507. https://resolver.caltech.edu/CaltechAUTHORS:20180914-150421730

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Abstract

Time-reversed ultrasonically encoded (TRUE) optical focusing focuses light beyond one transport mean free path by phase-conjugating the ultrasonically tagged light. However, in previous works, only a small portion of the tagged light was phase-conjugated by using a photorefractive Bi_(12)SiO_(20) crystal, due to its small active area (1x1 cm^2). In this work, we report high-efficiency TRUE focusing using a large-area photorefractive polymer (5x5 cm^2), which demonstrated ~40 times increase in focused energy. Further, we imaged absorbers embedded in a turbid sample of thickness of ~12 transport mean free paths.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2005021DOIArticle
ORCID:
AuthorORCID
Wang, Lihong0000-0001-9783-4383
Additional Information:© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:optical focusing, ultrasound modulation, optical imaging, phase conjugation, time reversal, photorefractive material
Series Name:Proceedings of SPIE
Issue or Number:8581
Record Number:CaltechAUTHORS:20180914-150421730
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180914-150421730
Official Citation:Yuta Suzuki, Yuta Suzuki, Puxiang Lai, Puxiang Lai, Xiao Xu, Xiao Xu, Lihong V. Wang, Lihong V. Wang, } "High-efficiency time-reversed ultrasonically encoded optical focusing using a large-area photorefractive polymer", Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 85811G (4 March 2013); doi: 10.1117/12.2005021; https://doi.org/10.1117/12.2005021
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89660
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:14 Sep 2018 23:11
Last Modified:03 Oct 2019 20:18

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