Experimental demonstration of a free-space cylindrical cloak without superluminal propagation
We experimentally demonstrated an alternative approach of invisibility cloaking that can combine technical advantages of all current major cloaking strategies in a unified manner and thus can solve bottlenecks of individual strategies. A broadband cylindrical invisibility cloak in free space is desi...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/95580 http://hdl.handle.net/10220/9134 |
| _version_ | 1811676436463878144 |
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| author | Xu, Su Cheng, Xiangxiang Xi, Sheng Zhang, Runren Moser, Herbert O. Shen, Zhi Xu, Yang Huang, Zhengliang Zhang, Xianmin Yu, Faxin Zhang, Baile Chen, Hongsheng |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Xu, Su Cheng, Xiangxiang Xi, Sheng Zhang, Runren Moser, Herbert O. Shen, Zhi Xu, Yang Huang, Zhengliang Zhang, Xianmin Yu, Faxin Zhang, Baile Chen, Hongsheng |
| author_sort | Xu, Su |
| collection | NTU |
| description | We experimentally demonstrated an alternative approach of invisibility cloaking that can combine technical advantages of all current major cloaking strategies in a unified manner and thus can solve bottlenecks of individual strategies. A broadband cylindrical invisibility cloak in free space is designed based on scattering cancellation (the approach of previous plasmonic cloaking), and implemented with anisotropic metamaterials (a fundamental property of singular-transformation cloaks). Particularly, nonsuperluminal propagation of electromagnetic waves, a superior advantage of non-Euclidian-transformation cloaks constructed with complex branch cuts, is inherited in this design, and thus is the reason of its relatively broad bandwidth. This demonstration provides the possibility for future practical implementation of cloaking devices at large scales in free space. |
| first_indexed | 2024-10-01T02:21:27Z |
| format | Journal Article |
| id | ntu-10356/95580 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:21:27Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/955802023-02-28T19:39:08Z Experimental demonstration of a free-space cylindrical cloak without superluminal propagation Xu, Su Cheng, Xiangxiang Xi, Sheng Zhang, Runren Moser, Herbert O. Shen, Zhi Xu, Yang Huang, Zhengliang Zhang, Xianmin Yu, Faxin Zhang, Baile Chen, Hongsheng School of Physical and Mathematical Sciences DRNTU::Science::Physics We experimentally demonstrated an alternative approach of invisibility cloaking that can combine technical advantages of all current major cloaking strategies in a unified manner and thus can solve bottlenecks of individual strategies. A broadband cylindrical invisibility cloak in free space is designed based on scattering cancellation (the approach of previous plasmonic cloaking), and implemented with anisotropic metamaterials (a fundamental property of singular-transformation cloaks). Particularly, nonsuperluminal propagation of electromagnetic waves, a superior advantage of non-Euclidian-transformation cloaks constructed with complex branch cuts, is inherited in this design, and thus is the reason of its relatively broad bandwidth. This demonstration provides the possibility for future practical implementation of cloaking devices at large scales in free space. Published version 2013-02-18T06:11:27Z 2019-12-06T19:17:49Z 2013-02-18T06:11:27Z 2019-12-06T19:17:49Z 2012 2012 Journal Article Xu, S., Cheng, X., Xi, S., Zhang, R., Moser, H., Shen, Z., et al. (2012). Experimental Demonstration of a Free-Space Cylindrical Cloak without Superluminal Propagation. Physical Review Letters, 109(22). https://hdl.handle.net/10356/95580 http://hdl.handle.net/10220/9134 10.1103/PhysRevLett.109.223903 en Physical review letters © 2012 American Physical Society. This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevLett.109.223903]. 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. application/pdf |
| spellingShingle | DRNTU::Science::Physics Xu, Su Cheng, Xiangxiang Xi, Sheng Zhang, Runren Moser, Herbert O. Shen, Zhi Xu, Yang Huang, Zhengliang Zhang, Xianmin Yu, Faxin Zhang, Baile Chen, Hongsheng Experimental demonstration of a free-space cylindrical cloak without superluminal propagation |
| title | Experimental demonstration of a free-space cylindrical cloak without superluminal propagation |
| title_full | Experimental demonstration of a free-space cylindrical cloak without superluminal propagation |
| title_fullStr | Experimental demonstration of a free-space cylindrical cloak without superluminal propagation |
| title_full_unstemmed | Experimental demonstration of a free-space cylindrical cloak without superluminal propagation |
| title_short | Experimental demonstration of a free-space cylindrical cloak without superluminal propagation |
| title_sort | experimental demonstration of a free space cylindrical cloak without superluminal propagation |
| topic | DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/95580 http://hdl.handle.net/10220/9134 |
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