M. Uebernickel, R. Güther, G. Blume, C. Fiebig, K. Paschke, G. Erbert

Published in:

Appl. Phys. B, vol. 99, no. 3, pp. 457-464 (2010).

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.

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