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Phase-matching properties and refined Sellmeier equations of the new nonlinear infrared crystal CdSiP2
Vincent Kemlin1, Pierre Brand, Benoît Boulanger
1Institut Néel Centre National de la Recherche Scientifique - Université Joseph Fourier, 25 Rue des Martyrs, BP 166, F38402 Grenoble Cedex 9, France.
Optics Letters
|May 20, 2011
Abstract:
We directly measured the second harmonic generation and difference frequency generation phase-matching directions of the nonlinear crystal CdSiP(2) until 9.5 μm using the sphere method. The simultaneous fit of the experimental angular data allowed the Sellmeier equations of the ordinary and extraordinary principal refractive indices to be refined over the entire transparency range of the crystal.

