Studies on growth, spectral, optical and mechanical properties of new organic NLO crystal: guanidinium L-glutamate (GuGL).
Good optical quality single crystal of guanidinium l-glutamate is grown by slow evaporation solution growth technique. The cell parameters and crystallinity are determined from the single crystal and powder X-ray diffraction analysis. The formation of synthesized compound was confirmed by FT-IR and FT-Raman spectroscopic analysis. Wide band gap of 4.98eV with high transmittance up to 2000 nm is observed for the grown crystal in UV-Vis-NIR spectral analysis. The optical constants such as refractive index and extinction coefficient of the grown crystal are obtained as 2.1 and 8.64×10(-6) respectively. The nonlinear optical study reveals that the second harmonic generation efficiency of guanidinium l-glutamate is 2.8 times that of potassium dihydrogen phosphate (KDP). The mechanical stability of the grown crystal was analyzed by Vickers microhardness test and the results are discussed.
PG and Research Department of Physics, Pachaiyappa's College, Chennai 600 030, India.
T
T
Arumanayagam
S
S
Ananth
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P
Murugakoothan
D003460:Crystallization; D018360:Crystallography, X-Ray; D018698:Glutamic Acid / Q000737:chemistry*; D019791:Guanidine / Q000031:analogs & derivatives* / Q000737:chemistry*; D006244:Hardness; D055595:Mechanical Phenomena; D017711:Nonlinear Dynamics; D055620:Optical Phenomena; D017785:Photons; D012031:Refractometry; D017550:Spectroscopy, Fourier Transform Infrared; D019265:Spectroscopy, Near-Infrared; D013059:Spectrum Analysis, Raman; D014732:Vibration
D018698:Glutamic Acid; D019791:Guanidine