Modelling of hundreds of wavelength long, highly resonant, 3D subwavelength patterned scattering structures
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- 作者：Patrick C. Chaumet ; Anne Sentenac ; Anne-Laure Fehrembach
- 关键词：Numerical nodelling ; Discrete dipole approximation ; Subwavelength scattering structure ; Guided mode resonance
- 刊名：Optical and Quantum Electronics
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：49
- 期：2
- 全文大小：
- 刊物主题：Optics, Lasers, Photonics, Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
- 出版者：Springer US
- ISSN：1572-817X
- 卷排序：49
文摘
In this paper, we study the performances of the Dipole Discrete Approximation method for modelling the reflectivity of a highly resonant, 3D subwavelength patterned structure extending over tens of thousands wavelength square. The computation time of the whole reflectivity spectrum (80 wavelengths) was about 3 h on a computer and requires about 1.5 GB in memory. These performances make the DDA an unique numerical tool for modelling the scattering by large 3D structures supporting long-range interactions.