Geometric limits to phase matching in self-diffraction experiments

Jose Viana Gomes; Antonio Guedes Pereira; Michael Scott Belsley

doi:10.1117/12.475905

24 July 2002 Geometric limits to phase matching in self-diffraction experiments

Jose Viana Gomes, Antonio Guedes Pereira, Michael Scott Belsley

Proceedings Volume 4751, ICONO 2001: Nonlinear Optical Phenomena and Nonlinear Dynamics of Optical Systems; (2002) https://doi.org/10.1117/12.475905
Event: XVII International Conference on Coherent and Nonlinear Optics (ICONO 2001), 2001, Minsk, Belarus

Abstract

In this communication we present a study regarding the limitations that geometry imposes on the degree of phase matching attainable in a self-diffraction experiment. We find that to generate a strong signal the effective area over which the incident beam are superposed within the nonlinear medium must contain spatial variations on a length scale equal to the inverse of the phase mismatch. We develop a simple model that allows us to interpret the generated signal in terms of a sum over contributing phasors from each plane of constant phase within the active region. The phasors tend to add together to create a spiral figure reminiscent of Cornu Spirals in diffraction theory.

Citation Download Citation

Jose Viana Gomes, Antonio Guedes Pereira, and Michael Scott Belsley "Geometric limits to phase matching in self-diffraction experiments", Proc. SPIE 4751, ICONO 2001: Nonlinear Optical Phenomena and Nonlinear Dynamics of Optical Systems, (24 July 2002); https://doi.org/10.1117/12.475905

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