| Original Articles |
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Two-Photon Absorption and Excited State Dynamics of Two Organic Molecules Containing Donor/Acceptor Moieties |
| YAN Yong-Li1,2, LI Bo1, LIU Kang-Jun1, DONG Zhi-Wei1, MA Guo-Hong3, WANG Xiao-Mei4, QIAN Shi-Xiong1 |
| 1Department of Physics, Fudan University, Shanghai 2004332Surface Physics Lab (National Key Lab), Fudan University, Shanghai 2004333Department of Physics, Shanghai University, Shanghai 2004444College of Material Science and Engineering, Suzhou University, Suzhou 215021 |
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| Cite this article: |
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YAN Yong-Li, LI Bo, LIU Kang-Jun et al 2008 Chin. Phys. Lett. 25 2456-2459 |
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Abstract The wave motion on the charged surface of a viscous Newtonian liquid is solved as an initial-value problem. Both the leaky dielectric and perfect dielectric cases are considered. The amplitude of wave is assumed to be small. The electric field induced by surface charge is shown to have a generally destabilizing effect on surface wave. The neutral stability curve is drawn in the (G, Ne) plane (G: the gravitational bond number; Ne: the electrical Bond number). The Ohnesorge number, Taylor--Melcher number and permittivity ratio have little influence on the neutral stability curve. It is testified that the classical normal mode method cannot predict wave behaviour at small times.
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| Keywords:
33.80.Rv
34.30.+h
82.53.-k
82.35.Ej
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Received: 16 March 2008
Published: 26 June 2008
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| PACS: |
33.80.Rv
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(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
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34.30.+h
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82.53.-k
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(Femtochemistry)
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82.35.Ej
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(Nonlinear optics with polymers)
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