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Optical Engineering

Parallel finite-difference time-domain modeling of an opal photonic crystal
Author(s): Alessandro Vaccari; Luca Cristoforetti; Antonino Cala' Lesina; Lora Ramunno; Andrea Chiappini; Francesco Prudenzano; Alessandro Bozzoli; Lucia Calliari
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Paper Abstract

This work describes a computational approach for the optical characterization of an opal photonic crystal (PC). We intend, in particular, to validate our approach by comparing the transmittance of a crystal model, as obtained by numerical simulation, with the transmittance of the same crystal, as measured over 400- to 700-nm wavelength range. We consider an opal PC with a face-centered cubic lattice structure of spherical particles made of polystyrene (a nonabsorptive material with constant relative dielectric permittivity). Light-crystal interaction is simulated by numerically solving Maxwell’s equations via the finite-difference time-domain method and by using the Kirchhoff formula to calculate the far field. A method to study the propagating Bloch modes inside the crystal bulk is also sketched.

Paper Details

Date Published: 18 February 2014
PDF: 7 pages
Opt. Eng. 53(7) 071809 doi: 10.1117/1.OE.53.7.071809
Published in: Optical Engineering Volume 53, Issue 7
Show Author Affiliations
Alessandro Vaccari, Fondazione Bruno Kessler (Italy)
Luca Cristoforetti, Provincia Autonoma di Trento (Italy)
Antonino Cala' Lesina, Univ. of Ottawa (Canada)
Lora Ramunno, Univ. of Ottawa (Canada)
Andrea Chiappini, Consiglio Nazionale Delle Ricerche (Italy)
Francesco Prudenzano, Politecnico di Bari (Italy)
Alessandro Bozzoli, Fondazione Bruno Kessler (Italy)
Lucia Calliari, Fondazione Bruno Kessler (Italy)

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