In this article, we have shown that it is possible to design large optical gap squaraines displaying a sizable fs regime TPA activity in the technologically relevant 700-800 nm region. Also, we unequivocally assigned, through single crystal X-ray analysis, the regiochemistry of the squaric acid condensation reaction at the 3-position of unsubstituted indole derivatives. Finally, we demonstrated that derivative 1 TPA activity in the optical limiting relevant ns regime exceeds that of one of the most promising quadrupolar derivative so far employed.

Indolic squaraines as two-photon absorbing dyes in the visible region: X-ray structure, electrochemical, and nonlinear optical characterization

FERRANTE, CAMILLA;FORTUNATI, ILARIA;SIGNORINI, RAFFAELLA;BOZIO, RENATO;
2008

Abstract

In this article, we have shown that it is possible to design large optical gap squaraines displaying a sizable fs regime TPA activity in the technologically relevant 700-800 nm region. Also, we unequivocally assigned, through single crystal X-ray analysis, the regiochemistry of the squaric acid condensation reaction at the 3-position of unsubstituted indole derivatives. Finally, we demonstrated that derivative 1 TPA activity in the optical limiting relevant ns regime exceeds that of one of the most promising quadrupolar derivative so far employed.
2008
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2449187
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