Single Crystal Growth of Potassium Titanyl Arsenate (KTA) for Nonlinear Optics.

Abstract

This program was directed to the hydrothermal crystal growth of the nonlinear optical material potassium titanyl arsenate, KTiOAsO4. The solubility and phase relations were investigated for selected K/As ratios in KH2 AsO4 -KOH solutions over a temperature range of 300-600 deg C and 10,000-30,000 psi. The P-V-T data were generated and extrapolated for use in gold liners and Rene' 41 autoclaves with a pressure balancing method. All data were transferred to 1.5 inch diameter x 18 inch long autoclaves. Growth runs were made for 7-10 weeks under a gradient of 30 deg C with a 10 molar KH2AsO4 mineralizer. We have grown crystals of 18 x 18 x 35 mm at rates of up to lmm/side/week. The crystals were single domain, high internal quality, and water white. A final production process was developed, crystals were tested in different OPO applications and results reported in several papers.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1993
Accession Number
ADA299819

Entities

People

  • John W. Ings
  • Mark H. Randles
  • Roger F. Belt
  • Thomas E. Iradi Sr

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Curie Temperature
  • Laser Applications
  • Lasers
  • Materials
  • Measurement
  • Nonlinear Optics
  • Optical Materials
  • Optics
  • Phase Diagrams
  • Physical Properties
  • Production
  • Temperature Gradients

Readers

  • Materials Science and Engineering.
  • Thermal Physics or Thermal Science.