Two-photon excited intramolecular energy transfer and light-harvesting effect in novel dendritic systems

Guang S. He*, Tzu Chau Lin, Yiping Cui, Paras N. Prasad, Darryl W. Brousmiche, Jason M. Serin, Jean Frechet

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Two-photon absorption excited intramolecular energy transfer and light-harvesting effects are demonstrated in three novel dendritic systems. These systems contain both an antenna structure that can effectively absorb two-photon energy at ∼800 nm and emit fluorescence at ∼515 nm and a core moiety that can absorb one-photon energy at ∼520 nm and emit at ∼590 nm. Covalently combining the core and antenna functionalities intrinsically changes the optical behavior of the component pieces. The two-photon energy absorbed by the antenna structure is resonantly transferred to the core, where the core's emission intensity is enhanced by 8, 20, and 34 times for the three dendritic systems.

Original languageEnglish (US)
Pages (from-to)768-770
Number of pages3
JournalOptics Letters
Volume28
Issue number10
DOIs
StatePublished - May 15 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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