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Optical and SHG Measurements of Aminoacids doped ADP NLO crystals

Published online by Cambridge University Press:  29 May 2020

R. Ananda Kumari*
Affiliation:
SreeSiddaganga College of Arts, Science & Commerce, B.H.Road, Tumkur, Karnataka
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Abstract

L-Arginine and L-Alanine aminoacids doped ADP crystals were grown from aqueous solution by slow evaporation technique at constant temperature. The crystalline nature of the grown crystals was confirmed using powder X-ray diffraction technique. The vibrational frequencies of the grown crystals were identified using FTIR spectral analysis. Optical absorption study was carried out and a good transparency in the entire visible region was observed with the lower cutoff wavelength of 308 nm and 318 nm for the L-Alanine & L-Arginine doped crystals respectively. The transmission data has been used to evaluate the optical band gap of L-Alanine and L-Arginine doped ADP crystals and is found tobe 5.023 eV. Second harmonic generation (SHG) studies were performed by the classical Kurtz powder technique using a Nd: YAG laser operating at 1064 nm. The SHG efficiency of doped ADP is found to be higher compared to Pure ADP crystals.

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Copyright © Materials Research Society 2020

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Optical and SHG Measurements of Aminoacids doped ADP NLO crystals
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