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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/2468

Title: Third order nonlinear optical studies in europium naphthalocyanine using degenerate four wave mixing and Z-scan
Authors: Unnikrishnan, K P
Jayan,Thomas
Nampoori, V P N
Vallabhan, C P G
Technology
Keywords: nonlinear optics
europium naphthalocyanine
Issue Date: 1-Apr-2002
Publisher: Elsevier
Abstract: Third order nonlinear susceptibility χ(3) and second hyperpolarizability (γ) of a bis-naphthalocyanine viz. europium naphthalocyanines, Eu(Nc)2, were measured in dimethyl formamide solution using degenerate four wave mixing at 532 nm under nanosecond pulse excitation. Effective nonlinear absorption coefficient, βeff and imaginary part of nonlinear susceptibility, Im(χ(3)) were obtained using open aperture /Z-scan technique at the same wavelength. Optical limiting property of the sample was also investigated. The role of excited state absorption in deciding the nonlinear properties of this material is discussed.
URI: http://dyuthi.cusat.ac.in/purl/2468
Appears in Collections:Dr.C P Girijavallabhan

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