AuthorsUysal, Ismail Enes
Ulku, Huseyin Arda
KAUST DepartmentComputational Electromagnetics Laboratory
Computational Physics and Materials Science (CPMS)
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Online Publication Date2017-03-06
Print Publication Date2017-03-20
Permanent link to this recordhttp://hdl.handle.net/10754/623208
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AbstractA time domain surface integral equation (TD-SIE) solver is developed for quantum-corrected analysis of transient electromagnetic field interactions on plasmonic nanostructures with sub-nanometer gaps. “Quantum correction” introduces an auxiliary tunnel to support the current path that is generated by electrons tunneled between the nanostructures. The permittivity of the auxiliary tunnel and the nanostructures is obtained from density functional theory (DFT) computations. Electromagnetic field interactions on the combined structure (nanostructures plus auxiliary tunnel connecting them) are computed using a TD-SIE solver. Time domain samples of the permittivity and the Green function required by this solver are obtained from their frequency domain samples (generated from DFT computations) using a semi-analytical method. Accuracy and applicability of the resulting quantum-corrected solver scheme are demonstrated via numerical examples.
CitationUysal IE, Ulku HA, Sajjad M, Singh N, Schwingenschlögl U, et al. (2017) Quantum-corrected transient analysis of plasmonic nanostructures. Optics Express 25: 5891. Available: http://dx.doi.org/10.1364/oe.25.005891.
PublisherThe Optical Society