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 and emit fluorescence at and a core moiety that can absorb one-photon energy at and emit at . 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
Full Article | PDF ArticleMore Like This
Mikhail Drobizhev, Aliaksandr Karotki, Aleksander Rebane, and Charles W. Spangler
Opt. Lett. 26(14) 1081-1083 (2001)
Justin R. Lawrence, Graham A. Turnbull, Ifor D. W. Samuel, Gary J. Richards, and Paul L. Burn
Opt. Lett. 29(8) 869-871 (2004)
Akira Otomo, Sonoko Otomo, Shiyoshi Yokoyama, and Shinro Mashiko
Opt. Lett. 27(11) 891-893 (2002)