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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 26, Iss. 11 — Nov. 1, 2009
  • pp: 2336–2339

White-light imaging analysis of bi-grating systems

Lingyu Wan and Hongliang Li  »View Author Affiliations

JOSA A, Vol. 26, Issue 11, pp. 2336-2339 (2009)

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Two gratings consist of an imaging system that forms a no-dispersion image of an object that is illuminated by white light. The process of double diffraction of the actual system is analyzed using the Fresnel diffraction approximation. One grating generates a number of spectral images of the diffraction orders of an object. The other grating combines one-order dispersive images into one and reconstructs a clear image. A bi-grating system in this case shows the same imaging capability as the lens, but its principle is completely different. An expression of the imaging rule is deduced that agrees well with experiments.

© 2009 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1960) Diffraction and gratings : Diffraction theory
(050.1970) Diffraction and gratings : Diffractive optics
(110.0110) Imaging systems : Imaging systems
(110.2960) Imaging systems : Image analysis

ToC Category:
Diffraction and Gratings

Original Manuscript: July 13, 2009
Revised Manuscript: September 13, 2009
Manuscript Accepted: September 14, 2009
Published: October 13, 2009

Lingyu Wan and Hongliang Li, "White-light imaging analysis of bi-grating systems," J. Opt. Soc. Am. A 26, 2336-2339 (2009)

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