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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 68, Iss. 9 — Sep. 1, 1978
  • pp: 1206–1210

Rigorous diffraction theory for transmission phase gratings with deep rectangular grooves

K. Knop  »View Author Affiliations


JOSA, Vol. 68, Issue 9, pp. 1206-1210 (1978)
http://dx.doi.org/10.1364/JOSA.68.001206


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Abstract

The diffraction of light by deep rectangular-groove transmission phase gratings is treated by solving Maxwell’s equations numerically. Results are given for the light diffracted into the zero order by gratings with grating constants d in the range λ < d < 5λ, aspect ratio b (= linewidth/d), 0 < b < 1, and grating depths a < 5λ, assuming a refractive index n0 = 1.5. Such gratings are used in practice as a dye-free replacement for color filters. They offer a new way of storing pictorial information in small format for read out in conventional projectors.

© 1978 Optical Society of America

Citation
K. Knop, "Rigorous diffraction theory for transmission phase gratings with deep rectangular grooves," J. Opt. Soc. Am. 68, 1206-1210 (1978)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-68-9-1206

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