AI Article Synopsis
- The paper discusses a novel design of a bi-layer metamaterial formed by folding an infinite metallic bar into an omega shape, which enhances asymmetric transmission (AT) for linearly polarized light.
- This metamaterial exhibits a unique combination of hybrid resonance and Fabry-Perot-like cavity mode, achieving a maximum AT effect of 0.8 at a wavelength of approximately 1364 nm in the near-infrared region.
- The design is also noted for its robustness against misalignments, making it easier to fabricate, and opens up potential applications for polarization filters, switches, and other nano-devices.
Article Abstract
In this paper, the infinite-length metallic bar is folded to a continuous omega-shaped resonator and then arranged as a bi-layer metamaterial, which presents a hybrid resonance and a Fabry-Perot-like cavity mode. The asymmetric transmission (AT) for linearly polarized light is powerfully enhanced at a near-infrared regime by strongly coupling the hybrid resonance to the cavity, with the maximum value of the high-efficiency AT effect reaching 0.8 at around 1364 nm. At this near-infrared band, such a high-efficiency AT effect has never been realized previously by a bi-layer metamaterial. More importantly, we demonstrate that our design is robust to the misalignments, which greatly decreases the difficulties in sample fabrications. Accordingly, the proposed omega-shaped metamaterial provides potential applications in designing polarization filters, polarization switches, and other nano-devices.
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| http://dx.doi.org/10.1364/OE.26.003508 | DOI Listing |
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