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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 25 — Dec. 10, 2007
  • pp: 16484–16499

Design and modeling of tapered waveguide for photonic crystal slab coupling by using time-domain Hertzian potentials formulation

A. Massaro, M. Grande, R. Cingolani, A. Passaseo, and M. De Vittorio  »View Author Affiliations


Optics Express, Vol. 15, Issue 25, pp. 16484-16499 (2007)
http://dx.doi.org/10.1364/OE.15.016484


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Abstract

This work introduces a new simulation approach to the evaluation of the time-domain electromagnetic (EM) field useful in the modeling of tapered waveguide for the Photonic Crystal Slab (PCS) coupling. Only solutions of two scalar Helmholtz-equations are used in the evaluation of electric and magnetic Hertzian-potentials that yields the EM field and the frequency response of the tapered waveguide. By considering simultaneously an analytical and a numerical approximation it is possible to reduce the computational burden. In order to compare the computational time we analyze the 2D structure by also using the Finite Difference Time Domain (FDTD) method and by the 3D Finite Element Method (FEM). The method is applied by starting from design criteria of the tapered structures in order to set the correct geometrical and physical parameters, and considers the field-perturbation effect in proximity of the dielectric discontinuities by generators modeling.

© 2007 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(310.0310) Thin films : Thin films

ToC Category:
Photonic Crystals

History
Original Manuscript: October 4, 2007
Revised Manuscript: November 15, 2007
Manuscript Accepted: November 19, 2007
Published: November 28, 2007

Citation
A. Massaro, M. Grande, R. Cingolani, A. Passaseo, and M. De Vittorio, "Design and modeling of tapered waveguide for photonic crystal slab coupling by using time-domain Hertzian potentials formulation," Opt. Express 15, 16484-16499 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-25-16484


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