We report the first example of a heterocycle-based multi-branched two-photon absorption (TPA) dye. We show that the new chromophore presents a very large TPA cross-section in the femtoseconds (fs) regime. Comparison of the TPA cross-sections between the branched system and the corresponding “monomeric unit” shows a strong cooperative enhancement. A value of 22.6:1, corresponding to a 750% enhancement, was observed.

Design and synthesis of heterocyclic multi-branched dyes for two-photon absorption

BOZIO, RENATO;FERRANTE, CAMILLA;PEDRON, DANILO;SIGNORINI, RAFFAELLA
2003

Abstract

We report the first example of a heterocycle-based multi-branched two-photon absorption (TPA) dye. We show that the new chromophore presents a very large TPA cross-section in the femtoseconds (fs) regime. Comparison of the TPA cross-sections between the branched system and the corresponding “monomeric unit” shows a strong cooperative enhancement. A value of 22.6:1, corresponding to a 750% enhancement, was observed.
2003
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2497364
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