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Effect of L-proline on the growth and NLO properties of KDP crystal

P. JAGDISH1,* , N. P. RAJESH2

Affiliation

  1. Department of Physics, Sona College of Technology, Salem – 636 005, India
  2. Centre for Crystal Growth, SSN College of Engineering, Kalavakkam – 636 110, India.

Abstract

L-proline doped potassium dihydrogen phosphate (KDP) single crystals are grown by solution growth technique. Slow cooling method was adopted for the growth. Due to variation in the doping concentration, there is a modification in the growth habit, nonlinear optical property and mechanical hardness of the doped crystals. Fourier transform infrared (FTIR) spectrum reveal strong absorption bands due to L-proline. UV – visible spectra shows an improvement in the optical transmittance. SHG studies have shown an enhancement in the NLO property due to doping. Mechanical hardness of the crystal also depends on the concentration of the dopant. The unit cell parameters and cell volume are obtained by single crystal X-ray diffractrometer CAD4/MACH 3 with MoKα radiation of wavelength 0.71073Å, at room temperature (293 K). All the results are compared with as grown KDP crystals..

Keywords

L-proline, Doping, NLO crystals, KDP.

Submitted at: July 4, 2011
Accepted at: Aug. 10, 2011

Citation

P. JAGDISH, N. P. RAJESH, Effect of L-proline on the growth and NLO properties of KDP crystal, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 8, pp. 962-966 (2011)