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Applied Optics

Applied Optics


  • Vol. 40, Iss. 31 — Nov. 1, 2001
  • pp: 5583–5587

Diffraction from tunable periodic structures: application for the determination of electro-optic coefficients

Xi Yang, Lowell T. Wood, and John H. Miller, Jr.  »View Author Affiliations

Applied Optics, Vol. 40, Issue 31, pp. 5583-5587 (2001)

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We discuss a method for measuring electro-optic coefficients by measuring diffraction from a tunable grating. The method involves measuring the changes in the diffraction pattern of a reflection grating, where applied electric fields of alternating direction induce changes in the index of refraction through the electro-optic effect. For certain geometries, these applied fields cause period-doubling effects that produce new peaks in the diffraction pattern. Numerically calculated diffraction patterns are presented for the assumptions of both homogeneous and inhomogeneous fields. Peak splitting, as a function of both the number of slits illuminated and the induced change in the index of refraction, is observed and discussed. Finally, the usefulness of our method for the measurement of electro-optic coefficients is discussed.

© 2001 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1960) Diffraction and gratings : Diffraction theory
(160.2100) Materials : Electro-optical materials
(230.2090) Optical devices : Electro-optical devices

Original Manuscript: February 15, 2001
Revised Manuscript: May 25, 2001
Published: November 1, 2001

Xi Yang, Lowell T. Wood, and John H. Miller, "Diffraction from tunable periodic structures: application for the determination of electro-optic coefficients," Appl. Opt. 40, 5583-5587 (2001)

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