Abstract
The photon absorption spectra for donor-π-donor (D-π-D), donor-π-acceptor-π-donor (D-A-D) and acceptor-π-donor-π-acceptor (A-D-A) molecules, which have been measured using two-photon induced fluorescence method, is discussed. The lowest-energy two-photon absorption for these system can be well described by a Sum-Over-States expression in which only three electronic levels play a significant role: the ground state, the lowest-dipole allowed state, and the two-photon state. An additional increase in transition dipole moment Mee is observed in the D-A-D and A-D-A systems.
Original language | English (US) |
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Pages | 265-266 |
Number of pages | 2 |
State | Published - 1999 |
Event | Proceedings of the 1999 Quantum Electronics and Laser Science Conference (QELS '99) - Baltimore, MD, USA Duration: May 23 1999 → May 28 1999 |
Other
Other | Proceedings of the 1999 Quantum Electronics and Laser Science Conference (QELS '99) |
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City | Baltimore, MD, USA |
Period | 5/23/99 → 5/28/99 |