Study of the properties of the SHG with diode lasers

Published in:
Appl. Phys. B, vol. 99, no. 3, pp. 457-464 (2010).
© Springer. Part of Springer Science+Business Media. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the Springer Science+Business Media, LLC.

Abstract:
An experimental study of the second-harmonic generation (SHG) properties with nondiffraction-limited radiation is presented. This includes the dependency of the normalized conversion efficiency on the crystal length, the beam quality, and the focusing conditions. A Gauss-Schell-model- based theory of SHG is applied, which gives an improved simulation of the experimental results in comparison to the standard Boyd-Kleinman theory for nondiffraction-limited beams.

Full version in pdf-format.