Abstract
Plasmonic color filters, exhibiting great promise as an alternative for existing colorant-based filters, often only output one fixed color. Developing active color filters with controllable color output will lead to more compact color filter-based devices. In this paper, we present an approach to achieve active color filtering with a polarization-dependent plasmonic structural color filter, which comprises arrays of asymmetric cross-shaped nanoapertures in an ultrathin film of silver. A systematical study for aperture size, array period, and the thickness of silver film dependences of color filter properties is carried out, and strategies for polarization-dependent color filter designing are generated. A polarization-dependent and high tunability of color can be achieved by selecting the appropriate nanostructure parameters, which imply many potential applications.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
Jing Yan, Jin Guo, Ke Qu, and Ruo-Zhou Li
Appl. Opt. 63(5) 1340-1346 (2024)
X. L. Hu, L. B. Sun, Beibei Zeng, L. S. Wang, Z. G. Yu, S. A. Bai, S. M. Yang, L. X. Zhao, Q. Li, M. Qiu, R. Z. Tai, H. J. Fecht, J. Z. Jiang, and D. X. Zhang
Appl. Opt. 55(1) 148-152 (2016)
Qin Chen and David R. S. Cumming
Opt. Express 18(13) 14056-14062 (2010)