11 March 2008 The optimization of zero-order diffractive filters for security imaging applications
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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.
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Dawei Zhang, Yuanshen Huang, Zhengji Ni, Jiabi Chen, Songlin Zhuang, 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); doi: 10.1117/12.792249; https://doi.org/10.1117/12.792249
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