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Proceedings Paper

Simulation and optimisation methods for non-periodic subwavelength structures
Author(s): Florian Hudelist; A. J. Waddie; R. Busczynski; M. R. Taghizadeh
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Paper Abstract

The use of nano-structured elements in the fabrication of micro-optical subwavelength components requires a fully vectorial solution to Maxwell's curl equations. In this paper, we compare the results generated by two of the main methods used in the solution of the curl equations, the Fourier Modal Method (FMM) and the Finite Difference Time Domain (FDTD) method. We address the computational issues surrounding the accurate modelling of nano-structured elements (with features in the 10nm-100nm range) for a range of micro-optical elements, e.g. cylindrical lenses, photonic bandgap reflectors and polarisation dependent beamsplitters. Finally, we show the experimental verification of the nano-structured designs using microwave radiation.

Paper Details

Date Published: 14 May 2008
PDF: 10 pages
Proc. SPIE 6992, Micro-Optics 2008, 699210 (14 May 2008);
Show Author Affiliations
Florian Hudelist, Heriot-Watt Univ. (United Kingdom)
A. J. Waddie, Heriot-Watt Univ. (United Kingdom)
R. Busczynski, Heriot-Watt Univ. (United Kingdom)
M. R. Taghizadeh, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 6992:
Micro-Optics 2008
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Mohammad R. Taghizadeh, Editor(s)

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