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Looking through walls and around corners

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  • Freund, Isaac

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.

Suggested Citation

  • Freund, Isaac, 1990. "Looking through walls and around corners," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 168(1), pages 49-65.
    • Handle: RePEc:eee:phsmap:v:168:y:1990:i:1:p:49-65
    DOI: 10.1016/0378-4371(90)90357-X
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    1. Igor Birman, 1986. "A note on Soviet foreign trade gains," Europe-Asia Studies, Taylor & Francis Journals, vol. 38(4), pages 586-589.
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    Cited by:

    1. Florian Willomitzer & Prasanna V. Rangarajan & Fengqiang Li & Muralidhar M. Balaji & Marc P. Christensen & Oliver Cossairt, 2021. "Fast non-line-of-sight imaging with high-resolution and wide field of view using synthetic wavelength holography," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    2. Davide Pierangeli & Claudio Conti, 2023. "Single-shot polarimetry of vector beams by supervised learning," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Tian Shi & Liangsheng Li & He Cai & Xianli Zhu & Qingfan Shi & Ning Zheng, 2022. "Computational imaging of moving objects obscured by a random corridor via speckle correlations," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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