Quick and simple method to measure third-order nonlinear optical properties of dye-doped polymer films

Quadratic phase modulation is used to measure the electronic third-order nonlinear optical susceptibility of thin polymer film solid solutions of organic dyes. This simple technique is shown to provide quick measurements of the χ(3)1133 component of the third-order optical susceptibility. The measur...

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Bibliographic Details
Published in:Applied physics letters 1989-04, Vol.54 (17), p.1628-1630
Main Authors: KUZYK, M. G, DIRK, C. W
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Sheets and films
Technology of polymers
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Summary:Quadratic phase modulation is used to measure the electronic third-order nonlinear optical susceptibility of thin polymer film solid solutions of organic dyes. This simple technique is shown to provide quick measurements of the χ(3)1133 component of the third-order optical susceptibility. The measured quadratic electro-optic coefficient of 7.5 wt. % (2.5 mol %) of a dicyanovinyl azo dye in poly(methyl methacrylate) (PMMA) is 4.4×10−21 m2/V2, which corresponds to a direct current Kerr coefficient of 1.4×10−11 esu. The electronic and orientational mechanisms, whose response times are faster than 30 ps, are discussed.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.101376