Four hundred-nanometer blue-violet light production by type-I noncritical phase-matching second-harmonic generation in Gd1-xRxCa4O(BO3)(3) (R = Lu, Sc): Crystal growth and nonlinear characterization
[摘要]：The optical birefringence of Gd1 - xRxCa4O(BO3)(3) (R = Lu or Sc) nonlinear crystals can be controlled by changing the compositional parameter x. Single crystals of Gd1 - xRxCa4O(BO3)(3) with large size and good quality have been grown by Czochralski method. The chemical compositions of the grown crystals were determined and X-ray measurements have been carried out to characterize the structural changes with compositional parameter x. According to our assumptions, the obtained results demonstrate that the grown crystals convert the near-infrared radiation of 800 nm into blue-violet light (400 nm) by type-I noncritical phase-matching (NCPM) second-harmonic generation (SHG) processes along Y axis. (C) 2010 Elsevier B.V. All rights reserved.
