Simulation and optimisation methods for non-periodic subwavelength structures

Florian Hudelist, A. J. Waddie, R. Busczynski, M. R. Taghizadeh

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish
Title of host publicationMicro-Optics 2008
Publication statusPublished - 2008
EventSemiconductor Lasers and Laser Dynamics III - Strasbourg, France
Duration: 7 Apr 20089 Apr 2008


ConferenceSemiconductor Lasers and Laser Dynamics III


  • Computational electromagnetism
  • FDTD
  • FMM
  • Nanostructures


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