Vibrational energy transfer between adsorbed molecules has been observed using time of flight mass spectroscopy. l,kycloheptadiene was adsorbed on a MgF2 surface at 30 K both alone and with cyclohexane, CS2 and Xe as co-adsorbates. A KrF laser was used to electronically excite 1,3-cycloheptadiene. F
Excitation transfer in the vicinity of a dielectric surface
β Scribed by Minhaeng Cho; Robert J Silbey
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 313 KB
- Volume
- 242
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Using the quantum electrodynamics method, we present the resonance excitation transfer matrix element in the vicinity of a dielectric surface. Depending on the geometry and orientations of two dipoles, our results show that the excitation transfer can be suppressed or enhanced by the presence of the dielectric surface in comparison to that of the free space. Both near-zone and wave-zone limits are discussed.
π SIMILAR VOLUMES
The binding energy of a hydrated electron in the vicinity of a water cluster is considered. Our consistent quantum-mechanical treatment results in an effective potential different form the classical image potential. Various approximate forms ofthe dielectric function are tested and compared.