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Efficiency of Implicit Symplectic Finite-Difference Time-Domain Method for Near-Field Optics

[+] Author Affiliations
Ikuo Saitoh

Future University Hakodate, Hakodate, Hokkaido, Japan

Makoto Naruse

National Institute of Information and Communications Technology, Koganei, Tokyo, JapanThe University of Tokyo, Tokyo, Japan

Paper No. ESDA2012-82727, pp. 71-74; 4 pages
doi:10.1115/ESDA2012-82727
From:
  • ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis
  • Volume 1: Advanced Computational Mechanics; Advanced Simulation-Based Engineering Sciences; Virtual and Augmented Reality; Applied Solid Mechanics and Material Processing; Dynamical Systems and Control
  • Nantes, France, July 2–4, 2012
  • Conference Sponsors: International
  • ISBN: 978-0-7918-4484-7
  • Copyright © 2012 by ASME

abstract

We proposed a new method, implicit symplectic finite difference time domain (FDTD) method) which inherits the good properties from the conventional FDTD method, simplecticity and the conservation of energy. The proposed method is free from the Courant-Friedrics-Lewy condition at the same time.

In this paper, we show our method is more efficient than the conventional FDTD method using a typical problem, a polarization control in optical near and far fields of the designing the shape of a metal nanostructure.

Copyright © 2012 by ASME

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