The optimization of zero-order diffractive filters for security imaging applications

Dawei Zhang; Yuanshen Huang; Zhengji Ni; Jiabi Chen; Songlin Zhuang; Hongbo He

doi:10.1117/12.792249

11 March 2008 The optimization of zero-order diffractive filters for security imaging applications

Dawei Zhang, Yuanshen Huang, Zhengji Ni, Jiabi Chen, Songlin Zhuang, Hongbo He

Proceedings Volume 6984, Sixth International Conference on Thin Film Physics and Applications; 69843V (2008) https://doi.org/10.1117/12.792249
Event: Sixth International Conference on Thin Film Physics and Applications, 2007, Shanghai, China

Abstract

As a result of the coupling process between the incident and the guided waves, the zero-order reflection exhibits a narrow spectral response. There were some investigations on how to control the reflectance response of filters which have diffractive structures. But these investigations only considered the case at the 0 deg azimuthal angle. In this work, one optimized structure of ZODF which had conspicuous spectral shift effect and certain spectral response for the TE polarization mode was given.

Citation Download Citation

Dawei Zhang, Yuanshen Huang, Zhengji Ni, Jiabi Chen, Songlin Zhuang, and Hongbo He "The optimization of zero-order diffractive filters for security imaging applications", Proc. SPIE 6984, Sixth International Conference on Thin Film Physics and Applications, 69843V (11 March 2008); https://doi.org/10.1117/12.792249

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