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Low power optical limiting studies of copper doped lithium tetraborate nanoparticles.
Dhanuskodi, S; Mohandoss, R; Vinitha, G; Pathinettam Padiyan, D.
Afiliación
  • Dhanuskodi S; School of Physics, Bharathidasan University, Tiruchirappalli 620024, India. Electronic address: dhanus2k3@yahoo.com.
  • Mohandoss R; School of Physics, Bharathidasan University, Tiruchirappalli 620024, India.
  • Vinitha G; Division of Physics, School of Advanced Sciences, Vellore Institute of Technology University, Chennai 600048, India.
  • Pathinettam Padiyan D; Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627 012, India.
Spectrochim Acta A Mol Biomol Spectrosc ; 140: 288-93, 2015 Apr 05.
Article en En | MEDLINE | ID: mdl-25615676
The copper doped lithium tetraborate (LTB:Cu) nanoparticles were synthesized by sol-gel method and characterized by XRD (tetragonal structure) and by FESEM (sphere-like nanoparticle). UV-Vis studies show that there is no strong absorption in the visible region. In the luminescence spectrum, the emission peak at 370 nm reveals the presence of Cu+ in LTB lattice. The relative powder second harmonic generation efficiency of pure and doped LTB is equal to the standard NLO material, KDP. The nonlinear optical parameters of LTB:Cu nanoparticles say, nonlinear refractive index, nonlinear absorption coefficient and third order nonlinear optical susceptibility were determined to be of the order of 10(-8)cm2/W, 10(-2) cm/W and 10(-5) esu, respectively. The optical power limiting behavior of the samples were studied by Z-scan technique with (532 nm, 50 mW) Nd:YAG laser and the limiting threshold values are found to be 22.7 mW for 0.01 M and 24.9 mW for 0.03 and 0.05 M LTB:Cu nanoparticles.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Boratos / Cobre / Nanopartículas Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Boratos / Cobre / Nanopartículas Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido