Abstract
The propagation of off-axis Gaussian beams through an optical system is described in the paraxial approximation. The formulae for the second harmonic power for stationary focused noncollinear SHG is given. Numerical results and analytical approximations for limiting cases are provided. The theory is applied to the problem of background of noncollinear SHG in pulse duration measurement techniques.
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Rempel, C., Fischer, R. Second harmonic generation with noncollinear focusing. Opt Quant Electron 14, 467–474 (1982). https://doi.org/10.1007/BF00610303
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DOI: https://doi.org/10.1007/BF00610303