CaltechAUTHORS
  A Caltech Library Service

Continuous scanning of a time-reversed ultrasonically encoded optical focus by reflection-mode digital phase conjugation

Suzuki, Yuta and Tay, Jian Wei and Yang, Qiang and Wang, Lihong V. (2014) Continuous scanning of a time-reversed ultrasonically encoded optical focus by reflection-mode digital phase conjugation. Optics Letters, 39 (12). pp. 3441-3444. ISSN 0146-9592. PMCID PMC4138829. http://resolver.caltech.edu/CaltechAUTHORS:20160713-131030120

[img] PDF - Published Version
See Usage Policy.

546Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20160713-131030120

Abstract

Time-reversed ultrasonically encoded (TRUE) optical focusing in turbid media was previously implemented using both analog and digital phase conjugation. The digital approach, in addition to its large energy gain, can improve the focal intensity and resolution by iterative focusing. However, performing iterative focusing at each focal position can be time-consuming. Here, we show that by gradually moving the focal position, the TRUE focal intensity is improved, as in iterative focusing at a fixed position, and can be continuously scanned to image fluorescent targets in a shorter time. In addition, our setup is, to the best of our knowledge, the first demonstration of TRUE focusing using a digital phase conjugate mirror in a reflection mode, which is more suitable for practical applications.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1364/OL.39.003441DOIArticle
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-39-12-3441PublisherArticle
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138829PubMed CentralArticle
ORCID:
AuthorORCID
Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2014 Optical Society of America. Received December 12, 2013; revised April 7, 2014; accepted April 25, 2014; posted May 7, 2014 (Doc. ID 202448); published June 4, 2014. We thank James Ballard and Xiao Xu for editing the manuscript. This work was sponsored in part by National Institutes of Health grants DP1 EB016986 (NIH Director’s Pioneer Award) and R01 CA186567 (NIH Director’s Transformative Research Award). L.W. has a financial interest in Microphotoacoustics, Inc. and Endra, Inc., which, however, did not support this work.
Funders:
Funding AgencyGrant Number
NIHDP1 EB016986
NIHR01 CA186567
Classification Code:(170.3880) Medical and biological imaging; (110.0113) Imaging through turbid media; (070.5040) Phase conjugation; (110.7050) Turbid media
PubMed Central ID:PMC4138829
Record Number:CaltechAUTHORS:20160713-131030120
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160713-131030120
Official Citation:Y. Suzuki, J. Tay, Q. Yang, and L. Wang, "Continuous scanning of a time-reversed ultrasonically encoded optical focus by reflection-mode digital phase conjugation," Opt. Lett. 39, 3441-3444 (2014)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69007
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:27 Jul 2016 17:12
Last Modified:27 Jul 2016 17:12

Repository Staff Only: item control page