Single-shot diffraction-limited imaging through scattering layers via bispectrum analysis

Tengfei Wu, Ori Katz*, Xiaopeng Shao, Sylvain Gigan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

102 Scopus citations

Abstract

Recently introduced speckle correlations-based techniques enable noninvasive imaging of objects hidden behind scattering layers. In these techniques, the hidden object Fourier amplitude is retrieved from the scattered light autocorrelation, and the lost Fourier phase is recovered via iterative phase-retrieval algorithms, which suffer from convergence to wrong local minimums solutions and cannot solve ambiguities in object orientation. Here, inspired by notions used in astronomy, we experimentally demonstrate that in addition to Fourier amplitude, the object-phase information is naturally and inherently encoded in the scattered light bispectrum (the Fourier transform of triple correlation) and can also be extracted from a single high-resolution speckle pattern, based on which we present a single-shot imaging scheme to deterministically and unambiguously retrieve diffraction-limited images of objects hidden behind scattering layers.

Original languageAmerican English
Pages (from-to)5003-5006
Number of pages4
JournalOptics Letters
Volume41
Issue number21
DOIs
StatePublished - 1 Nov 2016

Bibliographical note

Publisher Copyright:
© 2016 Optical Society of America.

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