Controllable emission of a dipolar source coupled with a magneto-dielectric resonant subwavelength scatterer.
Sci Rep
; 3: 3063, 2013 Oct 29.
Article
en En
| MEDLINE
| ID: mdl-24165924
We demonstrate experimentally and theoretically that a local excitation of a single scatterer of relative dielectric permittivity ε = 6 permits to excite broad dipolar and quadrupolar electric and magnetic resonances that shape the emission pattern in an unprecedented way. By suitably positioning the feed with respect to the sphere at a λ/3 distance, this compact antenna is able to spectrally sort the electromagnetic emission either in the forward or in the backward direction, together with a high gain in directivity. Materials with ε = 6 can be found in the whole spectrum of frequencies promising Mie antennas to become an enabling technology in numbers of applications, ranging from quantum single photon sources to telecommunications.
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01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Sci Rep
Año:
2013
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Reino Unido