Pramana

, Volume 10, Issue 3, pp 239–245 | Cite as

On the elimination of DC in reconstructed wavefronts from in-line holograms

  • S V Pappu
  • S Ananda Rao
Optics

Abstract

New experimental results to demonstrate that the annoying DC in the reconstructed wavefronts from in-line holograms could be successfully eliminated are presented in this paper. The complete elimination of DC has been achieved by making proper use of a Mach-Zehnder interferometer. The results for an in-line hololens and an in-line Fourier transform hologram are discussed.

Keywords

In-line hologram DC hololens fourier transform hologram Mach-Zehnder interferometer positive and negative hologram 

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Copyright information

© the Indian Academy of Sciences 1977

Authors and Affiliations

  • S V Pappu
    • 1
  • S Ananda Rao
    • 1
  1. 1.Department of Electrical Communication EngineeringIndian Institute of ScienceBangalore

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