Talbot images by a spatially fluctuating grating

Rajagopalan Umamaheswari, N. Takai, T. Asakura

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have studied statistically the formation of Talbot images of a grating with random fluctuations in the spatial domain. A detailed theoretical analysis is done for a one-dimensional rectangular grating with random fluctuations obeying a gaussian random process. It has been revealed that, when the standard deviation of fluctuations is approximately beyond 30% of the period of the rectangular grating, the image observed at the Talbot image plane preserves no longer any periodic structure. This result is experimentally confirmed from measurements of the visibility of the Talbot images.

Original languageEnglish
Pages (from-to)259-266
Number of pages8
JournalOptics Communications
Volume81
Issue number3-4
DOIs
Publication statusPublished - 1991 Feb 15
Externally publishedYes

Fingerprint

Periodic structures
Random processes
Visibility
gratings
random processes
visibility
standard deviation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Talbot images by a spatially fluctuating grating. / Umamaheswari, Rajagopalan; Takai, N.; Asakura, T.

In: Optics Communications, Vol. 81, No. 3-4, 15.02.1991, p. 259-266.

Research output: Contribution to journalArticle

Umamaheswari, Rajagopalan ; Takai, N. ; Asakura, T. / Talbot images by a spatially fluctuating grating. In: Optics Communications. 1991 ; Vol. 81, No. 3-4. pp. 259-266.
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