Abstract
Chiral structures are composed of periodically arranged asymmetric particles. The asymmetry of chiral particles results in extraordinary properties like negative refraction index, giant optical activity and circular dichroism. Consequently, they have applications in super lens and various polarization controllers. There are two types of chiral structures, namely planar and 3D structures. The planar ones usually have three- or fourfold rotational symmetry, which limits the polarization tuning capability. On the other hand, the 3D prototypes are difficult to fabricate and measure. Here, we propose a highly tunable sub-wavelength 3D chiral structure. It can be conveniently manufactured on the single-layer double-side printed circuit board. Based on the proposed idea, a sample converting a linearly polarized wave to a circularly polarized one is demonstrated both theoretically and experimentally. The conversion efficiency is measured to be 60%.
Recommended Citation
M. L. Chen et al., "A Highly Tunable Sub-wavelength Chiral Structure For Circular Polarizer," 2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 - Proceedings, pp. 485 - 486, article no. 7695951, Institute of Electrical and Electronics Engineers, Oct 2016.
The definitive version is available at https://doi.org/10.1109/APS.2016.7695951
Department(s)
Electrical and Computer Engineering
International Standard Book Number (ISBN)
978-150902886-3
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
25 Oct 2016
