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Journal ArticleDOI

Looking through walls and around corners

Isaac Freund
- 01 Sep 1990 - 
- Vol. 168, Iss: 1, pp 49-65
TLDR
In this article, it was shown that a visually opaque multiply scattering optical barrier can be used as a thin lens which produces a near perfect, real, paraxial image of objects lying behind the barrier.
Abstract
It is shown theoretically that under appropriate conditions a visually opaque, multiply scattering optical barrier can be made to serve as a thin lens which produces a near perfect, real, paraxial image of objects lying behind the barrier. Preliminary experimental results are described which verify the validity of the underlying assumptions. The barrier can also be made to serve as various other types of optical instruments, such as mirrors, polarizers, optical Fourier analyzers, theodolites, etc. Thus it is now clear that multiply scattering media should no longer be considered barriers to optical propagation, but are more properly to be regarded as potential high-precision optical instruments.

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Citations
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Journal ArticleDOI

Controlling waves in space and time for imaging and focusing in complex media

TL;DR: In this article, the authors used strongly scattering materials to focus, shape and compress waves by controlling the many degrees of freedom in the incident waves in complex media such as white paint and biological tissue.
Journal ArticleDOI

Non-invasive imaging through opaque scattering layers

TL;DR: An optical method is reported that allows non-invasive imaging of a fluorescent object that is completely hidden behind an opaque scattering layer and can be generalized to other contrast mechanisms and geometries.
Journal ArticleDOI

Non-invasive single-shot imaging through scattering layers and around corners via speckle correlations

TL;DR: In this article, a single high-resolution image of the scattered light, captured with a standard camera, encodes sufficient information to image through visually opaque layers and around corners with diffraction-limited resolution.
Journal ArticleDOI

Looking around corners and through thin turbid layers in real time with scattered incoherent light

TL;DR: In this article, wavefront shaping enables real-time widefield imaging through turbid layers with both coherent and incoherent llumination, but also the imaging of objects outside the line-of-sight using light scattered from diffuse walls.
Journal ArticleDOI

Light fields in complex media: Mesoscopic scattering meets wave control

TL;DR: In this article, a review summarizes how insights from mesoscopic scattering theory have direct relevance for optical wave control experiments and vice versa, and the results are expected to have an impact on a number of fields ranging from biomedical imaging to nanophotonics, quantum information, and communication technology.
References
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Book

Principles of Optics

Max Born, +1 more
TL;DR: In this paper, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.

Principles of Optics

Max Born, +1 more
TL;DR: In this article, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.
Journal ArticleDOI

Introduction to Fourier Optics

Joseph W. Goodman, +1 more
- 01 Apr 1969 - 
TL;DR: The second edition of this respected text considerably expands the original and reflects the tremendous advances made in the discipline since 1968 as discussed by the authors, with a special emphasis on applications to diffraction, imaging, optical data processing, and holography.
Book

Introduction to Fourier optics

TL;DR: The second edition of this respected text considerably expands the original and reflects the tremendous advances made in the discipline since 1968 as discussed by the authors, with a special emphasis on applications to diffraction, imaging, optical data processing, and holography.
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