Skip to Main content Skip to Navigation
Journal articles

Nanometer scale light focusing with high cavity-enhanced output

Marianne Consonni 1, 2 Jérôme Hazart 1 Gilles Lerondel 2 Alexandre Vial 2
1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 LNIO - Laboratoire de Nanotechnologie et d'Instrumentation Optique
ICD - Institut Charles Delaunay
Abstract : Efficient nanoscale optical focusing is demonstrated in double-structured thin metallic films supporting both surface plasmons and cavity eigenmodes. Numerical simulations show that efficient mode coupling can dramatically enhance the transmission of a subwavelength slit. For a spot size of ∼λ/10, the cavity induced enhancement is about an order of magnitude, leading to a final structure output (transmitted power/incident power) of ∼30%. Results are discussed in terms of cavity-slit mode matching and photon trapping within the cavity.
Keywords : Electromagnetism Plasmons Microscopy Gratings Transition metals Fluid mechanics Electrodynamics Dielectric properties Thin films Optical interference
Document type :
Journal articles
Complete list of metadata
https://hal-utt.archives-ouvertes.fr/hal-02405060
Contributor : Daniel Gavrysiak <>
Submitted on : Wednesday, December 11, 2019 - 4:08:44 PM
Last modification on : Monday, February 15, 2021 - 11:06:02 AM

Identifiers

Collections

CEA | DRT | LETI | UTT | CNRS | CEA-GRE

Citation

Marianne Consonni, Jérôme Hazart, Gilles Lerondel, Alexandre Vial. Nanometer scale light focusing with high cavity-enhanced output. Journal of Applied Physics, American Institute of Physics, 2009, 105 (8), pp.084308. ⟨10.1063/1.3112003⟩. ⟨hal-02405060⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

121