Multiorder nonlinear diffraction in frequency doubling processes

Solomon M. Saltiel

doi:10.1364/OL.34.000848

Multiorder nonlinear diffraction in frequency doubling processes

2009-03-13

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DOI：10.1364/OL.34.000848

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We analyze experimentally light scattering from chi((2)) nonlinear gratings and observe two types of second-harmonic frequency-scattering processes. The first process is identified as Raman-Nath type nonlinear diffraction that is explained by applying only transverse phase-matching conditions. The angular position of this type of diffraction is defined by the ratio of the second-harmonic wavelength and the grating period. In contrast, the second type of nonlinear scattering process is explained by the longitudinal phase matching only, being insensitive to the nonlinear grating period. (C) 2009 Optical Society of America

Keywords:

2ND-HARMONIC GENERATION

DOMAIN-WALLS

SCATTERING

Multiorder nonlinear diffraction in frequency doubling processes

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