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Opt Express. 2009 Feb 16;17(4):2557-64.

Efficient second harmonic generation from thin films of V-shaped benzo[b]thiophene based molecules.

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1Istituto per la Sintesi Organica e la Fotoreattività del CNR, via P. Gobetti 101, 40129 Bologna, Italy.


We have designed an original approach for efficient Second Harmonic Generation of tailored V-shape benzo[b]thiophene molecular systems enabling versatile and flexible one-step, dry and technologically friendly thin film processing. The designed moieties show chi((2)) values at least as high as the reference LiNbO(3) single crystal, without poling processing and matching the constrains of integrated optical configuration for nonlinear optical devices. This may open the way to a new class of organic materials exploitable for photonic applications.

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