Third-order optical polarizability of conjugated organic molecules |
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| Authors: | KC Rustagi J Ducuing |
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| Institution: | Laboratoire d''Optique Quantique, C.N.R.S. — Ecole Polytechique, Université Paris-Sud, 91405 Orsay, France |
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| Abstract: | We present a theoretical investigation of the π-electron contribution to linear and non-linear polarizabilities of conjugated chains. Using simple models the respective influence of chain length and bond alternation on optical non-linearities are analyzed. The results are applied to symmetrical cyanines and polyenes. |
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