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Proceedings Paper

Growth and noncritical phase matching second harmonic generation of Gd1-xRxCa4O(BO3)3 (R = Sc or Lu) nonlinear crystals
Author(s): Lucian Gheorghe; Pascal Loiseau; Gerard Aka; Takunori Taira; Voicu Lupei
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Paper Abstract

Single crystals of Gd1-xRxCa4O(BO3)3 (R3+ = Sc3+ or Lu3+) with large size and good quality have been grown by Czochralski method. By changing the compositional parameter x of Gd1-xScxCa4O(BO3)3 and Gd1-xLuxCa4O(BO3)3 crystals, their optical birefringence can be controlled in order to achieve non critical phase matching (NCPM) in the ranges of 792-824nm along Y axis and 922-963nm along Z axis, during second harmonic generations (SHG). The chemical compositions of the grown crystals were determined and X-ray diffraction measurements have been carried out to characterize the structural changes with compositional parameter x. The solubility limits of R3+ ions in the Gd4Ca4O(BO3)3 crystals were also determined. Nonlinear optical properties of these new biaxial borate crystals are reported. Experimental determinations of doubled frequencies in NCPM conditions are in good agreement with theoretical predictions.

Paper Details

Date Published: 17 April 2006
PDF: 9 pages
Proc. SPIE 6190, Solid State Lasers and Amplifiers II, 61900Z (17 April 2006); doi: 10.1117/12.662596
Show Author Affiliations
Lucian Gheorghe, Institute of Atomic Physics (Romania)
Pascal Loiseau, Lab. de Chimie Appliquée de l' Etat Solide, CNRS (France)
Gerard Aka, Lab. de Chimie Appliquée de l' Etat Solide, CNRS (France)
Takunori Taira, Institute for Molecular Science (Japan)
Voicu Lupei, Institute of Atomic Physics (Romania)

Published in SPIE Proceedings Vol. 6190:
Solid State Lasers and Amplifiers II
Alphan Sennaroglu, Editor(s)

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