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Hartley Transformation by an Inverting Interferometer

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Abstract

A new optical configuration is proposed for the optical implementation of Hartley transform.A Sagnac type interferometer with an afocal imaging system inside it constitutes a typical imaging block which synthesizes the image and its inverted version from an input object transparency. These two image distributions are coherently added with a phase difference of π/2 using a polarization technique and are Fourier transformed to yield the Hartley transform. Experimental demonstration is also presented.

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Authors and Affiliations

  1. Photonics Division Instruments Research and Development Establishment, Dehra Dun, 248008, India

    Debesh Choudhury

  2. Department of Physics, Indian Institute of Technology, Powai, Bombay, 400076, India

    P. N. Puntambekar

  3. Department of Applied Physics University College of Technology, Calcutta University, 92 Acharya Prafulla Chandra Road, Calcutta, 700009, India

    A. K. Chakraborty

Authors
  1. Debesh Choudhury
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  2. P. N. Puntambekar
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  3. A. K. Chakraborty
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One whose performance is same regardless of the face on which light is incident.

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Choudhury, D., Puntambekar, P.N. & Chakraborty, A.K. Hartley Transformation by an Inverting Interferometer. J Opt 26, 139–145 (1997). https://doi.org/10.1007/BF03549324

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  • DOI: https://doi.org/10.1007/BF03549324

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