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Glare suppression by coherence gated negation

Zhou, Edward Haojiang and Shibukawa, Atsushi and Brake, Joshua and Ruan, Haowen and Yang, Changhuei (2016) Glare suppression by coherence gated negation. Optica, 3 (10). pp. 1107-1113. ISSN 2334-2536. PMCID PMC5509221.

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Imaging of a weak target hidden behind a scattering medium can be significantly confounded by glare. We report a method, termed coherence gated negation (CGN), that uses destructive optical interference to suppress glare and allow improved imaging of a weak target. As a demonstration, we show that by permuting through a set range of amplitude and phase values for a reference beam interfering with the optical field from the glare and target reflection, we can suppress glare by an order of magnitude, even when the optical wavefront is highly disordered. This strategy significantly departs from conventional coherence gating methods in that CGN actively “gates out” the unwanted optical contributions while conventional methods “gate in” the target optical signal. We further show that the CGN method can outperform conventional coherence gating image quality in certain scenarios by more effectively rejecting unwanted optical contributions.

Item Type:Article
Related URLs:
URLURL TypeDescription material CentralArticle Paper
Zhou, Edward Haojiang0000-0001-7020-9502
Brake, Joshua0000-0002-5113-6886
Ruan, Haowen0000-0002-4917-4509
Yang, Changhuei0000-0001-8791-0354
Additional Information:© 2016 Optical Society of America. Received 11 July 2016; revised 6 September 2016; accepted 9 September 2016 (Doc. ID 270225); published 5 October 2016. Acknowledgment. The authors thank Dr. Mooseok Jang and Ms. Michelle Cua for helpful discussions. J. B. acknowledges support from the National Institute of Biomedical Imaging and Bioengineering under a Ruth L. Kirschstein National Research Service Award and from the Donna and Benjamin M. Rosen Bioengineering Center. Funding. National Institutes of Health (NIH)(1U01NS090577-01); GIST-Caltech Collaborative Research Proposal (CG2016). National Institute of Biomedical Imaging and Bioengineering (NIBIB) (1F31EB021153-01); Donna and Benjamin M. Rosen Bioengineering Center.
Group:Rosen Bioengineering Center
Funding AgencyGrant Number
GIST-Caltech Research CollaborationCG2016
NIH Postdoctoral Fellowship1F31EB021153-01
Donna and Benjamin M. Rosen Bioengineering CenterUNSPECIFIED
NIH Predoctoral FellowshipUNSPECIFIED
Issue or Number:10
Classification Code:OCIS codes: (030.6140) Speckle; (110.0113) Imaging through turbid media; (010.1350) Backscattering; (110.3175) Interferometric imaging.
PubMed Central ID:PMC5509221
Record Number:CaltechAUTHORS:20161010-124426959
Persistent URL:
Official Citation:Edward Haojiang Zhou, Atsushi Shibukawa, Joshua Brake, Haowen Ruan, and Changhuei Yang, "Glare suppression by coherence gated negation," Optica 3, 1107-1113 (2016)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70967
Deposited By: Katherine Johnson
Deposited On:10 Oct 2016 20:02
Last Modified:14 Apr 2022 17:23

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