Strong cooperative enhancement of two-photon absorption in dendrimers

Drobizhev, M.; Karotki, A.; Dzenis, Y.; Rebane, A.; Suo, Z. Y.; Spangler, C. W. (2003). Strong cooperative enhancement of two-photon absorption in dendrimers. The Journal of Physical Chemistry B, 107 (31), 7540-7543.
ajakirjaartikkel
Drobizhev, M.; Karotki, A.; Dzenis, Y.; Rebane, A.; Suo, Z. Y.; Spangler, C. W.
The Journal of Physical Chemistry B
1520-6106
107
31
2003
7540-7543
Ilmunud
1.1. Teadusartiklid, mis on kajastatud Web of Science andmebaasides Science Citation Index Expanded, Social Sciences Citation Index, Arts & Humanities Citation Index ja/või andmebaasis Scopus (v.a. kogumikud)
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English, We present, for the first time, unambiguous spectroscopic evidence of strong cooperative enhancement of two-photon absorption (TPA) in a series of dendritic macromolecules. The maximum TPA cross section increases in proportion to N-2, where N = 2, 4, 6 is the number of constituent identical chromophore units. We show that the enhancement is facilitated by the quasi-planar structure, which allows direct interbranch conjugation throughout the molecule.
NONLINEAR OPTICAL-RESPONSE; ORGANOMETALLIC COMPLEXES; MULTIBRANCHED