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Optics Letters

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  • Vol. 28, Iss. 10 — May. 15, 2003
  • pp: 768–770

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, and Jean M. J. Fréchet  »View Author Affiliations


Optics Letters, Vol. 28, Issue 10, pp. 768-770 (2003)
http://dx.doi.org/10.1364/OL.28.000768


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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.

© 2003 Optical Society of America

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(190.4180) Nonlinear optics : Multiphoton processes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(300.6410) Spectroscopy : Spectroscopy, multiphoton

Citation
Guang S. He, Tzu-Chau Lin, Yiping Cui, Paras N. Prasad, Darryl W. Brousmiche, Jason M. Serin, and Jean M. J. Fréchet, "Two-photon excited intramolecular energy transfer and light-harvesting effect in novel dendritic systems," Opt. Lett. 28, 768-770 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-10-768


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References

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