Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 26, Issue 22, Pages 2267-2270Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2014.2354532
Keywords
Alternating-direction implicit finite-difference time-domain method; auxiliary differential equations; dispersive media; plasmonic circuitry
Funding
- Italian Ministry of Foreign Affairs, Directorate General for the Country Promotion
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This letter presents an alternating-direction implicit finite-difference time-domain scheme for the efficient study of plasmonic systems. The material dispersion is described by generalized modified Lorentzian terms and it is implemented via the auxiliary differential equations technique employing an order reduction. The computational domain is backed by a properly designed convolution perfectly matched layer. The efficiency of the proposed method is validated in benchmark examples and its unconditional stability is evidenced by the Fourier method.
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