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Optics Letters

Optics Letters


  • Vol. 21, Iss. 9 — May. 1, 1996
  • pp: 632–634

Direct observation of the effective χ(2) grating in bulk glasses encoded for second-harmonic generation

Jae H. Kyung and N. M. Lawandy  »View Author Affiliations

Optics Letters, Vol. 21, Issue 9, pp. 632-634 (1996)

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The effective χ(2) grating responsible for second-harmonic generation in bulk glasses was spatially resolved with a charge-selective etching technique. We observed a spatially varying structure with a period equal to the coherence length of the material. The measured period of the grating showed excellent agreement with the expected value. In addition, cross-sectional etching patterns show that in this regime of encoding intensities the flux responsible for the intense electric field is not unidirectional as predicted by most models.

© 1996 Optical Society of America

Original Manuscript: October 25, 1995
Published: May 1, 1996

Jae H. Kyung and N. M. Lawandy, "Direct observation of the effective χ(2) grating in bulk glasses encoded for second-harmonic generation," Opt. Lett. 21, 632-634 (1996)

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