Multiorder nonlinear diffraction in frequency doubling processes

Solomon M. Saltiel; Dragomir N. Neshev; Wieslaw Krolikowski; Ady Arie; Ole Bang; Yuri S. Kivshar

doi:10.1364/OL.34.000848

Multiorder nonlinear diffraction in frequency doubling processes

Solomon M. Saltiel, Dragomir N. Neshev, Wieslaw Krolikowski, Ady Arie, Ole Bang, Yuri S. Kivshar

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113 Citations (Scopus)

Abstract

We analyze experimentally light scattering from Χ⁽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.

Original language	English
Pages (from-to)	848-850
Number of pages	3
Journal	Optics Letters
Volume	34
Issue number	6
DOIs	https://doi.org/10.1364/OL.34.000848
Publication status	Published - 15 Mar 2009

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AU - Neshev, Dragomir N.

AU - Krolikowski, Wieslaw

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AU - Bang, Ole

AU - Kivshar, Yuri S.

PY - 2009/3/15

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AB - We analyze experimentally light scattering from Χ(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.

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Multiorder nonlinear diffraction in frequency doubling processes

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