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Zinc potassium phosphate hexahydrate crystals for nonlinear optics

Published online by Cambridge University Press:  12 June 2009

V. Krishnakumar ,
S. Manohar ,
R. Nagalakshmi ,
M. Piasecki ,
I. V. Kityk  and
P. Bragiel
V. Krishnakumar*
Affiliation:
Department of Physics, Periyar University, Salem 636 011, India
S. Manohar
Affiliation:
Department of Physics, Periyar University, Salem 636 011, India
R. Nagalakshmi
Affiliation:
National institute of Technology, Tiruchirappalli 620 015, India
M. Piasecki
Affiliation:
Department of Physics, J. Dlugosz University Czestochowa, Poland
I. V. Kityk
Affiliation:
Department of Chemistry, Silesian University of Technology, ul. Marcina Strzody 9, 44100 Gliwice, Poland
P. Bragiel
Affiliation:
Department of Physics, J. Dlugosz University Czestochowa, Poland
*
vkrishna_kumar@yahoo.com
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Abstract

Zinc potassium phosphate hexahydrate (ZnKPO4.6H2O) (abbreviated as ZPPH) single crystal is grown by reacting Potassium dihydrogen phosphate with Zinc Sulphate in equimolar ratio by slow evaporation. This compound crystallizes in the acentric orthorhombic symmetry class (space group Pmn21) and possesses photo induced optical second harmonic generation. The laser induced surface damage threshold for the grown crystal was measured as 1.7 × 1012 mJ/cm2 with Nd:YAG laser assembly which is of the same order as that of the reference KDP used in our experiment. The temperature dependent second harmonic generation studies were also carried out from room temperature to liquid helium temperature and the anomalies at low temperature qualifies this material as efficient low temperature optical switchers.

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Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 47 , Issue 3 , September 2009 , 30701
Copyright
© EDP Sciences, 2009

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