Investigación

 

Paraxial theory of sum-frequency generation by sideways alignment and phase-matching in uniaxial crystals

 

S. Hacyan

 

Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, México D.F. 01000, Mexico, e-mail: hacyan@fisica.unam.mx

 

Recibido el 27 de febrero de 2012;
aceptado el 28 de marzo de 2012

 

Abstract

A formalism in terms of Hertz potentials is presented describing sum-frequency generation in a uniaxial non-linear crystal. A scheme is proposed consisting in aligning the sideways propagation of extraordinary waves in combination with phase-matching. Simplified paraxial equations describing this situation are obtained. Particular attention is paid to the generation of second harmonics.

Keywords: Nonlinear optics; birefringence; sum-frequency generation.

 

PACS: 42.65.-k; 42.25.Lc

 

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Acknowledgments

This work is partially supported by CONACyT-México under grant 131839-Y.

 

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