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Applied Optics

Applied Optics


  • Vol. 37, Iss. 25 — Sep. 1, 1998
  • pp: 5823–5829

Rectangular surface-relief transmission gratings with a very large first-order diffraction efficiency (∼95%) for unpolarized light

Hendrik J. Gerritsen and Mary Lou Jepsen  »View Author Affiliations

Applied Optics, Vol. 37, Issue 25, pp. 5823-5829 (1998)

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Computer optimization shows that the first-order diffraction efficiency of a lossless-transmission surface-relief grating with a rectangular surface profile can be made very large (∼95%) simultaneously for light of TE and TM polarizations incident near the Bragg angle by the proper choice of the fill factor. The case for visible light incident close to the Bragg angle on unslanted gratings with periodicities corresponding to Bragg angles of 30°, 37.5°, and 45° is presented. The refractive index of the grating material was chosen in the range between 1.2 and 2.

© 1998 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1960) Diffraction and gratings : Diffraction theory
(050.7330) Diffraction and gratings : Volume gratings
(090.1760) Holography : Computer holography

Original Manuscript: October 14, 1997
Revised Manuscript: April 7, 1998
Published: September 1, 1998

Hendrik J. Gerritsen and Mary Lou Jepsen, "Rectangular surface-relief transmission gratings with a very large first-order diffraction efficiency (∼95%) for unpolarized light," Appl. Opt. 37, 5823-5829 (1998)

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