Efficient finite-element-based numerical modelling of large sub-wavelength patterned optical structures

Martin Hammerschmidt, Jakub Pabisiak, Ana Cristina Perez-Gea, Nicholas Julian, Sean Hon, Sven Burger

Research output: Chapter in book/report/conference proceedingConference proceedingpeer-review


Sub-wavelength patterned structures like cavity resonator integrated grating filters are relevant in various optical applications. Due to their highly resonant nature and due to their relatively large size it can be demanding to perform accurate optical simulations for such devices. In this contribution we investigate performance of hp finite-element based methods for this simulation problem. We demonstrate numerical convergence of the obtained solutions up to very high accuracy levels. We compare performance of our methods to results from the literature and investigate the influence of physical parameters on device performance, enhancing the Q-factor and reducing the horizontal size of the device.
Original languageEnglish
Title of host publicationHigh Contrast Metastructures VII
EditorsConnie J. Chang-Hasnain, Andrei Faraon, Fumio Koyama, Weimin Zhou
ISBN (Electronic)9781510615700
ISBN (Print)9781510615694
Publication statusPublished - 21 Feb 2018
EventHigh Contrast Metastructures VII 2018 - San Francisco, United States
Duration: 29 Jan 201831 Jan 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceHigh Contrast Metastructures VII 2018
Country/TerritoryUnited States
CitySan Francisco


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