Surface enhancement of local optical fields and the lightning-rod effect
| Autor: | A. V. Petukhov, V. A. Oleĭnikov, A V Ermushev, Boris V Mchedlishvili |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Surface (mathematics)
Materials science Condensed matter physics business.industry Modulus Statistical and Nonlinear Physics Lightning rod Dielectric Ellipsoid Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optics Electrical and Electronic Engineering business Local field |
| Zdroj: | Quantum Electronics. 23:435-440 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qe1993v023n05abeh003090 |
| Popis: | The increase in the local field Eloc due to the "lightning-rod effect" has been studied theoretically (in a model of a small ellipsoid) and experimentally (by a method of surface-enhanced second-harmonic generation on a surface with protruding needles). Algorithms are proposed for resolving the overall electromagnetic amplification of Eloc into resonant and nonresonant components, both in the model and experimentally. The model predicts a limitation on the nonresonant local-field enhancement because of the modulus of the dielectric constant of the metal. This prediction has been confirmed experimentally. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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