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Title: PSTD-FDTD analysis for complex irregular Fresnel zone plates
Authors: Ooi, B.L. 
Fan, Y.J.
Leong, M.S. 
Shan, X.C.
Lu, A.
Hristov, H.D.
Feick, D.
Keywords: Finite difference method
Fresnel zone plate
Full wave analysis
Pseudo-Spectral Method
Issue Date: 2007
Citation: Ooi, B.L.,Fan, Y.J.,Leong, M.S.,Shan, X.C.,Lu, A.,Hristov, H.D.,Feick, D. (2007). PSTD-FDTD analysis for complex irregular Fresnel zone plates. IET Seminar Digest 2007 (11961) : -. ScholarBank@NUS Repository.
Abstract: In the past, the Kirchhoff s diffraction integral (KDI) method was successfully employed to analyze the diffraction problem in simple Fresnel Zone Plate (FZP) design. However, for complex and irregular structured Fresnel Zone Plates, the Kirchhoff diffraction integral is no longer a good choice. Efficient full-wave analysis is thus needed for a complete 3D transient analysis. Owing to the large computation domain and huge unknowns of the Fresnel Zone Plate problems, which is typically 10λ to 20λ, to date, no full-wave analysis has been attempted. In this paper, an efficient PSTD-FDTD method was first developed and applied to the 3D transient analysis of the Fresnel Zone Plate problem. In this paper, both the classic Fresnel Zone Plate and the irregular Fresnel Zone Plate are analyzed with the PSTD-FDTD method. Its accuracy and efficiency are validated by comparing with the Kirchhoff s diffraction integral method.
Source Title: IET Seminar Digest
ISBN: 9780863418426
DOI: 10.1049/ic.2007.1621
Appears in Collections:Staff Publications

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