Affiliation:
1. Guangdong Polytechnic Normal University
2. Auburn University
3. Nanchang University
Abstract
Conventional defect modes in all-dielectric 1D photonic crystals (PCs) are polarization-insensitive. This poses a great challenge in achieving high-performance polarization selectivity. In this Letter, we introduce a defect layer into a 1D PC containing hyperbolic metamaterials to achieve an anomalous defect mode with polarization-sensitive characteristics. As the incident angle increases, such a defect mode remains almost unshifted under transverse magnetic polarization, while strongly shifting toward shorter wavelengths under transverse electric polarization. The polarization-sensitive characteristics of the defect mode can be well explained by the Fabry–Perot resonance condition. Assisted by the polarization-sensitive defect mode, wide-angle polarization selectivity with an operating angle width up to 54.8° can be realized. Our work provides a route to designing wide-angle linear polarizers using simple 1D structures, which would be useful in liquid crystal display and Q-switched lasers.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Jiangxi Province
Interdisciplinary Innovation Fund of Nanchang University
Start-up Funding of Guangdong Polytechnic Normal University
Subject
Atomic and Molecular Physics, and Optics
Cited by
40 articles.
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