Departmental Bulletin Paper 特定方向から励振されたプラズモニックブラックポールの解析

大機, 慎太郎

57pp.1 - 2 , 2016-03-24 , 法政大学大学院 理工学・工学研究科
A broadband omnidirectional light absorber, often called an optical black-hole, has received consid-erable attention. A plasmonic black-pole(PBP) using a periodic structure has been proposed and analyzed under the assumption that the PBP is omnidirectionally illuminated. In this paper, the case is considered where the PBP is illuminated with a cylindrical wave from a specific direction. It is shown that an absorptivity of more than 80% is obtained over a wavelength range of 500 nm to 1000 nm.Key Words : Light absorber, Optical black-hole, Plasmonic black-pole(PBP), FDTD method in cylindrical coordinates, Periodic structure

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