We present an alternative approach to tune the third-order nonlinear optical properties of organic molecules by inserting a functional group into the path of the p-electron conjugation instead of at its ends.We show that this scheme has a beneficial influence on the second-order hyperpolarizability for short molecules, but that in two instances where such molecules were polymerized into longer molecules the overall hyperpolarizability is reduced.
Third-order nonlinear optical properties of in-backbone substituted conjugated polymers
S. CONCILIO;
2002-01-01
Abstract
We present an alternative approach to tune the third-order nonlinear optical properties of organic molecules by inserting a functional group into the path of the p-electron conjugation instead of at its ends.We show that this scheme has a beneficial influence on the second-order hyperpolarizability for short molecules, but that in two instances where such molecules were polymerized into longer molecules the overall hyperpolarizability is reduced.File in questo prodotto:
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