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dc.contributor.authorTambova, Alexandra
dc.contributor.authorGroth, Samuel P
dc.contributor.authorWhite, Jacob K
dc.contributor.authorPolimeridis, Athanasios G
dc.date.accessioned2021-10-27T20:09:58Z
dc.date.available2021-10-27T20:09:58Z
dc.date.issued2018
dc.identifier.urihttps://hdl.handle.net/1721.1/134941
dc.description.abstract© 1983-2012 IEEE. This paper describes the implementation and performance of adiabatic absorbing layers in a fast Fourier transform (FFT)-accelerated volume integral equation (VIE) method for simulating truncated nanophotonics structures. At the truncation sites, we place absorbing regions in which the conductivity is increased gradually in order to minimize reflections. In the continuous setting, such adiabatic absorbers have been shown via coupled-mode theory to produce reflections that diminish at a rate related to the smoothness of the absorption profile function. The VIE formulation we employ relies on uniform discretizations of the geometry over which the continuously varying fields and material properties are represented by piecewise constant functions. Such a discretization enables the acceleration of the method via the FFT and, furthermore, the introduction of varying absorption can be performed in a straightforward manner without compromising this speedup. We demonstrate that, in spite of the crude discrete approximation to the smooth absorption profiles, our approach recovers the theoretically predicted reflection behavior of adiabatic absorbers. We thereby show that the FFT-accelerated VIE method is an effective and fast simulation tool for nanophotonics simulations.
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.isversionof10.1109/JLT.2018.2842054
dc.rightsCreative Commons Attribution-Noncommercial-Share Alike
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.sourcearXiv
dc.titleAdiabatic absorbers in photonics simulations with the volume integral equation method
dc.typeArticle
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
dc.relation.journalJournal of Lightwave Technology
dc.eprint.versionOriginal manuscript
dc.type.urihttp://purl.org/eprint/type/JournalArticle
eprint.statushttp://purl.org/eprint/status/NonPeerReviewed
dc.date.updated2019-07-09T15:03:42Z
dspace.orderedauthorsTambova, A; Groth, SP; White, JK; Polimeridis, AG
dspace.date.submission2019-07-09T15:03:43Z
mit.journal.volume36
mit.journal.issue17
mit.metadata.statusAuthority Work and Publication Information Needed


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