105 research outputs found
A quantum way for metamaterials
A new future for metamaterials is suggested, involving the insertion of
quantum degrees of freedom, under the guise of quantum dots or cold atoms, in
an photonic matrix. It is argued that new emergent, quantum, properties could
be obtained.Comment: 3 pages, 1 figure, submitted to Journal of Nanophotonic
Impedance operator description of a meta--surface with electric and magnetic dipoles
A meta-surface made of a collection of nano-resonators characterized an
electric dipole and a magnetic dipole was studied in the regime where the
wavelength is large with respect to the size of the resonators. An effective
description in terms of an impedance operator was derived.Comment: submitted to Mathematical Problems in Engineerin
Collective resonant modes of a meta-surface
A periodic layer of resonant scatterers is considered in the dipolar
approximation. An asymptotic expression for the field diffracted is given in
terms of an impedance operator. It is shown that surface Bloch modes appear as
a collective effect due to the resonances of the scatterers.Comment: 9 pages, 7 figures, extended paper from SPIE Optics+Photonics,
Nanostructured Thin Films VI;submitted to Journal of Nanophotonic
Weak and strong coupling of a quantum emitter with a meta-surface
Meta--surfaces are the bidimensional analogue of metamaterials. They are made
on resonant elements periodically disposed on a surface. They have the ability
of controlling the polarization of light and to generalized refraction laws as
well. They have also been used to enhance the generation of the second
harmonic. It seems however that their near-field properties have not been
investigated. In this work, the coupling of an emitter with a meta-- surface
made of a periodic set of resonant linear dipoles was studied. Bloch surface
modes localized on the meta--surface exist due the resonance of the dipoles.
The strong coupling regime with a emitter can be reached when the Bohr
frequency of the emitter is in resonance with the Bloch modes of the
meta-surface
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