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

Volume

28

Issue

24

fYear

2010

Firstpage

3562

Lastpage

3568

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2010.2089784

Filename

5610697