Enhancing efficiency of electromagnetic simulation in time domain with transformation optics

Jian Shiung Hong, Wei Ming Cheng, Meng Chang Yang, Ruei Cheng Shiu, Yung Chiang Lan, Kuan Ren Chen

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)


With sub-wavelength scaled structures in a large system, the conventional finite-difference time-domain method can consume much computational resources since it includes both the spatial and temporal dimension in the scheme. In order to reduce the computational cost, we combine the novel methodology "transformation optics" in the simulation to map a physical coordinate with designated non-uniform grids to a uniform numerical coordinate. For a demonstration, the transmission spectrum through a sub-wavelength metallic aperture with one-dimensional and two-dimensional coordinate transformation is simulated, and compared with uniform-grid cases. We show that the proposed method is accurate, and the computational cost can be reduced remarkably to at most 5.31%, in comparison with the simulation of the finest uniform grids demonstrated. We are confident that it should be helpful to the simulation study in sub-wavelength optics due to its verified accuracy and efficiency.

期刊Applied Sciences (Switzerland)
出版狀態Published - 2018 7月 12

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 儀器
  • 工程 (全部)
  • 製程化學與技術
  • 電腦科學應用
  • 流體流動和轉移過程


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