Localized surface-plasmon resonances in periodic nondiffracting metallic nanoparticle and nanohole arrays

Direct evidence for surface plasmon-mediated enhanced light transmission through metallic nanohole arrays.

This paper provides direct evidence for the role of surface plasmons in the enhanced optical transmission of light through metallic nanoscale hole arrays. Near-field optical images directly confirmed the presence of surface plasmons on gold nanohole arrays with interhole spacings larger than the surface plasmon wavelength. A simple interference model provides an intuitive explanation of the two...

Surface plasmon resonances of Cu nanowire arrays

In the recent past, considerable attention has been devoted to the optical signature of noble metal (Au, Ag, and Cu) nanostructures in the ultraviolet, visible, and nearinfrared spectral ranges, because of their promising applications in optical nanodevices. The optical response of metal nanostructures can be ascribed to surface plasmon resonances (SPR) [1]. In this report, we present our resul...

Polarization tomography of metallic nanohole arrays.

We report polarization tomography experiments on metallic nanohole arrays with square and hexagonal symmetry. As a main result we find that a fully polarized input beam is partly depolarized after transmission through a nanohole array. This loss of polarization coherence is found to be anisotropic; i.e., it depends on the polarization state of the input beam. The depolarization is ascribed to a...

Localized Surface Plasmon Resonances: Noble Metal Nanoparticle Interaction with Rare-Earth Ions

Surface plasmon coupling in periodic metallic nanoparticle structures: a semi-analytical model.

We report a semi-analytical model for calculating the coupling effects between the dipolar surface plasmon nanoparticles of a periodic structure. This model involves real-valued frequencies only and is therefore applicable to periodic structures with arbitrary dipolar units and environments.