Direct observation of the effective χ(2) grating in bulk glasses encoded for second-harmonic generation
Optics Letters, Vol. 21, Issue 9, pp. 632-634 (1996)
http://dx.doi.org/10.1364/OL.21.000632
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Abstract
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
Citation
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)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-9-632
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