Departmental Bulletin Paper 可視光帯における反射型フレネルゾーンプレートの解析

荻野, 良太

562015-03-24 , 法政大学大学院理工学・工学研究科
Fresnel zone plate (FZP) reflectors are analyzed in visible light using the body-ofrevolution finite-difference time-domain (BOR-FDTD) method. The advantage of the use of a dielectric FZP is demonstrated in comparison with a metallic FZP. Next, the FZP based on a staircase approximation is investigated. As a result, the intensity which is 1.2 times greater than that observed with a planar structure can be obtained by introducing the staircase approximation.

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