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χ(3) measurement and optical power limiting behavior of manganese doped lithium tetraborate nanoparticles
R. Mohandoss, S. Dhanuskodi,
Published in Elsevier
PMID: 25459619
Volume: 136
Issue: PB
Pages: 931 - 936
Manganese doped Li2B4O7 nano crystallites were prepared by chemical method and characterized by XRD, FTIR, UV and fluorescence spectra. FESEM reveals that the particles are coagulated and the particle size is in the range of 50-107 nm. Bands appear at 682-769 cm-1corresponds to the bending of B-O linkage in borate network. Nonradiative energy transfer process is observed from fluorescence spectrum. UV-Vis studies show the samples are completely transparent in the visible region and having absorption peaks (234 and 276 nm) in UV regime. The measured second harmonic generation values are 0.9 times KDP. The nonlinear optical parameters such as nonlinear refractive index, n2 (10-8 cm2/W), nonlinear absorption, β (10-2 cm/W) and nonlinear optical susceptibility, χ(3) (10-5 esu) are estimated using a Nd:YAG laser (532 nm, 50 mW). © 2014 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
PublisherData powered by TypesetElsevier