Mirror Image-Induced Magnetic Modes
| Autor: | Meseguer, F., Quidant, R., Ramiro-Manzano, F, Fenollosa, R., Tuzer, U., Shi, L., Xifré-Pérez, E |
|---|---|
| Přispěvatelé: | Enginyeria Electrònica, Elèctrica i Automàtica, Universitat Rovira i Virgili. |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Acs Nano Repositori Institucional de la Universitat Rovira i Virgili Universitat Rovira i virgili (URV) |
| DOI: | 10.1021/nn304855t |
| Popis: | 10.1021/nn304855t Reflection in a mirror changes the handedness of the real world, and right-handed objects turn left-handed and vice versa (M. Gardner, The Ambidextrous Universe, Penguin Books, 1964). Also, we learn from electromagnetism textbooks that a flat metallic mirror transforms an electric charge into a virtual opposite charge. Consequently, the mirror image of a magnet is another parallel virtual magnet as the mirror image changes both the charge sign and the curl handedness. Here we report the dramatic modification in the optical response of a silicon nanocavity induced by the interaction with its image through a flat metallic mirror. The system of real and virtual dipoles can be interpreted as an effective magnetic dipole responsible for a strong enhancement of the cavity scattering cross section. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|