SECOND HARMONIC GENERATION IN FERROELECTRIC LiTaO3 AND KNbO3 CONTAINING BULK NANO GLASS-CERAMICS

Author:

TARAFDER ANAL1,ANNAPURNA KALYANDURG1,CHALIHA REENAMONI SAIKIA1,SATAPATHY SRINIBAS2,TIWARI VIDYA SAGAR2,GUPTA PRADEEP KUMAR2,KARMAKAR BASUDEB1

Affiliation:

1. Glass Science & Technology Section, Glass Division, Central Glass and Ceramic Research Institute, Council of Scientific and Industrial Research (CSIR, India), 196, Raja S. C. Mullick Road, Kolkata 700 032, India

2. Laser Materials Development and Devices Division, Raja Ramanna Center for Advanced Technology, Indore 452 013, India

Abstract

The precursor glasses in (mol%) 25.53Li2O-21.53Ta2O5-35.29SiO2-17.65Al2O3 (LTSA) and 25K2O-25Nb2O5-50SiO2 (KNS) glass systems were prepared by the melt-quench technique. Ferroelectric LiTaO3 (LT) and KNbO3 (KN) crystallites containing bulk nano glass-ceramics have been prepared by controlled crystallization of these precursor glasses respectively. Second harmonic generations (SHG) at 532 nm in both the glass-ceramics have been realized under fundamental beam of Nd3+ :YAG laser source (1064 nm). The SHG power output has been found to increase up to 14 and 62.4 nJ with variation of rotation angle for LT and KN bulk nano glass-ceramics respectively due to orientation of ferroelectric domains under applied field.

Publisher

World Scientific Pub Co Pte Lt

Subject

Physics and Astronomy (miscellaneous),Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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