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Applied Optics

Applied Optics


  • Vol. 40, Iss. 1 — Jan. 1, 2001
  • pp: 125–128

Interferences in light deflection by ferroelastic domain walls

Laurent Guilbert and Zbigniew Czapla  »View Author Affiliations

Applied Optics, Vol. 40, Issue 1, pp. 125-128 (2001)

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Deflection of light is studied in a crystal of glycine phosphite containing two twin walls. When the crystal is rotated in the incident laser beam, interferences are observed in both the direct beam and in the main deflected beam (A or B) for both polarizations of the incident light. The contrast is especially high, because the mutual tilt angle of the principal axes is close to 45° in this twinned crystal. On this principle, fundamental-harmonic beam splitters could be built from as-grown twin crystals. Furthermore, the electrical modulation of the light deflected by ferroelectric–ferroelastic crystals can be now explained in terms of interference effects.

© 2001 Optical Society of America

OCIS Codes
(160.2260) Materials : Ferroelectrics
(260.1180) Physical optics : Crystal optics
(260.3160) Physical optics : Interference
(260.5430) Physical optics : Polarization

Original Manuscript: February 2, 2000
Revised Manuscript: September 13, 2000
Published: January 1, 2001

Laurent Guilbert and Zbigniew Czapla, "Interferences in light deflection by ferroelastic domain walls," Appl. Opt. 40, 125-128 (2001)

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