Unknown

Dataset Information

0

Beaming Visible Light with a Plasmonic Aperture Antenna.


ABSTRACT: We investigate experimentally the parameter space defining, in the visible range, the far-field diffraction properties of a single circular subwavelength aperture surrounded by periodic circular grooves milled on a metallic film. Diffraction patterns emerging from such an antenna are recorded under parallel- and perpendicular-polarized illumination at a given illumination wavelength. By monitoring the directivity and the gain of the antenna with respect to a single aperture, we point out the role played by the near-field surface plasmon excitations. The results can be analyzed through a Huygens-Fresnel model, accounting for the coherent interaction between the field radiated by the hole and the plasmonic field, propagating along the antenna surface and diffracted away in free space.

SUBMITTER: Yi JM 

PROVIDER: S-EPMC4270416 | biostudies-other | 2014 Apr

REPOSITORIES: biostudies-other

Similar Datasets

| S-EPMC4806319 | biostudies-literature
| S-EPMC4705036 | biostudies-literature
| S-EPMC3514495 | biostudies-other
| S-EPMC3898204 | biostudies-literature
| S-EPMC10066186 | biostudies-literature
| S-EPMC7670455 | biostudies-literature
| S-EPMC6119926 | biostudies-literature
| S-EPMC9330258 | biostudies-literature
| S-EPMC9075744 | biostudies-literature
| S-EPMC5399282 | biostudies-literature