Please use this identifier to cite or link to this item:
Title: Experimental demonstration of broadband reflectionless diffraction-free electromagnetic wave routing
Authors: Zhang, Youming
Gao, Zhen
Gao, Fei
Shi, Xihang
Xu, Hongyi
Luo, Yu
Zhang, Baile
Keywords: Electromagnetic Waves & Oscillations
Dielectric Properties
Issue Date: 2016
Source: Zhang, Y., Gao, Z., Gao, F., Shi, X., Xu, H., Luo, Y., et al. (2016). Experimental demonstration of broadband reflectionless diffraction-free electromagnetic wave routing. Physical Review B, 94, 220304-.
Series/Report no.: Physical Review B
Abstract: Wave diffraction is fundamentally difficult to overcome in the routing and interconnection of photonic signals. Although the phenomenon of reflectionless transport through sharp corners in a routing path has been realized in many previous demonstrations, wave diffraction does not allow them to transport deep-subwavelength information or sub-diffraction-limited images. Recent advances in ɛ -near-zero and anisotropic ɛ -near-infinity metamaterials have provided unique possibilities of achieving reflectionless diffraction-free electromagnetic wave routing, but their designs are fundamentally limited to narrow bandwidths, and they have not been demonstrated in reality. Here we experimentally demonstrate broadband reflectionless diffraction-free routing of electromagnetic waves through two right-angled sharp corners in a bent microwave rectangular waveguide. An image with deep-subwavelength information is transported through the bent waveguide in a broad bandwidth. This Rapid Communication supplements and extends the current studies of metamaterials with extreme permittivities and can be useful for routing and interconnection of subwavelength photonic information.
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.94.220304
Rights: © 2016 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.