Theory on the scattering of light and surface plasmon polaritons by arrays of holes and dimples in a metal film

Abstract

The scattering of light and surface plasmon polaritons (SPPs) by finite arrays of either holes or dimples in a metal film is treated theoretically. A modal expansion formalism, capable of handling real metals with up to thousands of indentations, is presented. Computations based on this method demonstrate that a single hole scatters a significant fraction of incoming light into SPPs. It is also observed that holes and dimples scatter SPPs into light with similar efficiencies, provided the depth of the dimple is larger than its radius. Finally, it is shown that in arrays the normalized-to-area emittances in the out-of-plane and SPP channels present different dependences with the number of holes.

arXiv comment22 pages, 11 figures, revised version submitted to New Journal of Physics

References in corpus (6)

• Efficient unidirectional nanoslit couplers for surface plasmons
• Theory of surface plasmon generation at nanoslit apertures
• Surface plasmons at single nanoholes in Au-films
• Electromagnetic surface states in structured perfect-conductor surfaces
• Resonant transmission of light through finite chains of subwavelength holes
• Scattering of surface plasmons by one-dimensional periodic nanoindented surfaces

Cited by in corpus (13)

• Plasmon scattering from single sub-wavelength holes
• Multipole surface plasmons in metallic nanohole arrays
• Quantum-Electron Back Action on Hybridization of Radiative and Evanescent Field Modes
• Optimal light harvesting structures at optical and infrared frequencies
• Microscopic analysis of spin-momentum locking on a geometric phase metasurface
• The role of surface plasmon polaritons in the optical response of a hole pair
• Transmittance of a subwavelength aperture flanked by a finite groove array \\ placed near the focus of a conventional lens
• Circular dichroism induction in WS2 by a chiral plasmonic metasurface
• Quasi-analytical solutions of hybrid platform and the optimization of highly sensitive thin-film sensors for terahertz radiation
• Evaluation of surface roughness of metal films using plasmonic Fano resonance in attenuated total reflection
• Role of electron back action on photons in hybridizing double-layer graphene plasmons with localized photons
• Asymmetrically filled slits in a metal film that split a light beam into two depending on its wavelength
• Mechanisms for photon sorting based on slit-groove arrays