Title :
STRD and Near Field Modeling of Metallic Wedges for Optical Detection Systems
Author :
Massaro, Alessandro ; Cingolani, Roberto
Author_Institution :
Center of Bio-Mol. Nanotechnol., Italian Inst. of Technol. IIT, Lecce, Italy
Abstract :
We analyze an accurate approach based on the Simultaneous Transverse Resonance Diffraction (STRD) modeling. The new method allows to evaluate by means of transmission line circuits the near field generated by a metallic wedge excited by an optical source. The STRD technique is implemented in the rigorous multipole expansion of the Green´s function (MEG) theory by providing a modeling of material permittivity detection for wireless micro/nano systems. A good agreement between finite element method (FEM), finite difference time domain (FDTD) and STRD/MEG results is found. Requiring a low computational cost, the proposed modeling is suited for electromagnetic simulators.
Keywords :
Green´s function methods; finite difference time-domain analysis; finite element analysis; optical sensors; Green´s function; MEG theory; STRD; finite difference time domain; finite element method; metallic wedges; near field modeling; optical detection systems; transverse resonance diffraction; Conductors; Finite element methods; Optical surface waves; Optical variables control; Plasmons; Probes; Surface waves; Metallic wedges modeling; optical detection system; plasmon probes; wireless sensing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2010.2089784
