Separated-beam nonphase-matched second-harmonic method of characterizing nonlinear optical crystals
JOSA B, Vol. 15, Issue 8, pp. 2298-2307 (1998)
http://dx.doi.org/10.1364/JOSAB.15.002298
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Abstract
We demonstrate a variation of the wedge method of Maker-fringe measurement in which the fundamental beam diameter is large enough to contain several second-harmonic coherence fringes. In the far field the second harmonic forms spatially separated beams from which both Δk’s and d_{eff}’s can be deduced on a single laser pulse. Analysis is simple because no fringe analysis is required and because the method is immune to multiple surface reflections, birefringent walk-off, group-velocity walk-off, and surface effects such as longitudinal polarization. Example measurements on KDP and LiIO_{3} are presented.
© 1998 Optical Society of America
OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials
Citation
Russell J. Gehr and A. V. Smith, "Separated-beam nonphase-matched second-harmonic method of characterizing nonlinear optical crystals," J. Opt. Soc. Am. B 15, 2298-2307 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-8-2298
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