Title :
Design and Optimization of High-
Surface Mode Cavities on Patterned Metallic Surfaces
Author :
Stabellini, Luca ; Carras, Mathieu ; Rossi, Alfredo De ; Bella, Gaetano
Author_Institution :
Thales Res. & Technol., Palaiseau
Abstract :
In this paper, we show that patterned metallic surfaces can support localized resonant modes if a suitable defect in the periodicity of the structure is introduced. For those modes, optical losses due to radiative leakage perpendicular to the metallic plane can be significantly reduced by properly tuning the geometry of the defect-mode surface cavity. A design strategy based on the investigation of the electromagnetic field in the reciprocal space is suggested.
Keywords :
Q-factor; cavity resonators; finite difference methods; integrated optics; optical design techniques; optical resonators; surface plasmons; defect-mode surface cavity; high-Q cavities; metallic plane; metallic surfaces; optical design; optical losses; optical resonators; optimization; patterned surfaces; periodicity; surface mode cavities; surface plasmons; Biomedical optical imaging; Design optimization; Optical devices; Optical resonators; Optical surface waves; Optical waveguides; Plasmons; Raman scattering; Resonance; Surface waves; $Q$ factor; Finite-differences time-domain (FDTD) method; Fourier transforms; integrated optics; optical resonators; optics; optoelectronic devices; surface plasmons;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2008.925648