Resumen

HACYAN, S.. Paraxial theory of sum-frequency generation by sideways alignment and phase-matching in uniaxial crystals. Rev. mex. fis. [online]. 2012, vol.58, n.3, pp.265-269. ISSN 0035-001X.

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.

Palabras llave : Nonlinear optics; birefringence; sum-frequency generation.