- Journal Article
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. © 2012 American Chemical Society. Show more
Journal / seriesACS Nano
Pages / Article No.
PublisherAmerican Chemical Society
SubjectColloids; Nanocavities; Nanoparticles; Charge image method; Photonic interaction; Metamaterials
Organisational unit09698 - Quidant, Romain / Quidant, Romain
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