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Characteristics and quality of grown potassium thiourea iodide crystal for second harmonic generation

  • D. S. Ahlawat
  • Krishan Kumar
  • Rachna Ahlawat
  • Sandeep Kumar
Article

Abstract

A desirable quality bulk single crystal of a novel organometalic nonlinear optical material of potassium thiourea iodide measuring 20 × 10 × 6 mm3 have been grown successfully from solution by slow evaporation method. The solubility curve of this material has been determined in double distilled water which is the most suitable solvent. The diffraction curve by HRXRD method corresponds to (531) plane of the tetragonal crystal. This paper reports vacancy type of point defects in the grown crystal by high resolution XRD method. Entrapped impurities during the crystal growth process are also reported. A stable- small and nearly same value of dielectric loss at four different temperatures in the high frequency range indicates comparatively better quality assessment of the grown crystal. Powder XRD and a.c. conductivity measurements are also carried out. The results of dielectric studies at four different temperatures indicate that the grown crystal is a promising optical material for photo induced second harmonic generation in laser physics.

Keywords

Dielectric Loss Second Harmonic Generation High Frequency Range Grown Crystal Defect Core 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The National Physical Laboratory (NPL), New Delhi is gratefully acknowledged for providing experimental facilities to characterize the grown PTI crystals. My wife Late Dr. (Mrs.) Sunil Kumari deserve for acknowledgement to encourage me for writing research papers.

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • D. S. Ahlawat
    • 1
  • Krishan Kumar
    • 1
  • Rachna Ahlawat
    • 1
  • Sandeep Kumar
    • 1
  1. 1.Department of PhysicsCh. Devi Lal UniversitySirsaIndia

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