Near-field enhancement characteristics of resonant periodic waveguides

Author

Ding, Y. ; Magnusson, R.

Author_Institution

Dept. of Electr. & Comput. Eng., Connecticut Univ., Storrs, CT, USA

Volume

2

fYear

2003

fDate

27-28 Oct. 2003

Firstpage

971

Abstract

In this paper, the near-field properties of weakly modulated resonant waveguide gratings are treated. Numerical results obtained with rigorous-coupled wave analysis (RCWA) and with the finite-difference time domain method (FDTD) yield quantitative information on relative field strengths and spatial extents associated with the near fields. The results show that the near-field strength can be greatly enhanced and that it is inversely proportional to the modulation strength up to ∼0.36 in the case under study.

Keywords

coupled mode analysis; diffraction gratings; finite difference time-domain analysis; optical modulation; optical waveguide theory; FDTD; finite-difference time domain method; modulation strength; near-field enhancement characteristics; near-field property; quantitative information; relative field strength; rigorous-coupled wave analysis; weakly modulated resonant waveguide grating; Amplitude modulation; Dielectric constant; Electromagnetic diffraction; Electromagnetic waveguides; Gratings; Lattices; Nonlinear optics; Optical waveguides; Resonance; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2003. LEOS 2003. The 16th Annual Meeting of the IEEE

ISSN

1092-8081

Print_ISBN

0-7803-7888-1

Type

conf

DOI

10.1109/LEOS.2003.1253130

Filename

1253130