Large scale cylindrical cloak in free space without superluminal propagation
Despite its remarkably fast development in the past few years, the technology of invisibility cloaking is still facing many serious bottlenecks, e.g. the bandwidth, the superluminal limitation, dispersion, loss, etc. In this paper, we experimentally demonstrated an alternative approach of invisibili...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/98792 http://hdl.handle.net/10220/12676 |
| _version_ | 1811680168374173696 |
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| author | Moser, Herbert O. Chen, Hongsheng Xu, Su Zhang, Baile Zhang, Runren Shen, Zhi Xu, Yang Zhang, Xianmin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Moser, Herbert O. Chen, Hongsheng Xu, Su Zhang, Baile Zhang, Runren Shen, Zhi Xu, Yang Zhang, Xianmin |
| author_sort | Moser, Herbert O. |
| collection | NTU |
| description | Despite its remarkably fast development in the past few years, the technology of invisibility cloaking is still facing many serious bottlenecks, e.g. the bandwidth, the superluminal limitation, dispersion, loss, etc. In this paper, 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 unique property of previous transformation-optics cloaking). Particularly, non-superluminal speed of light in the cloak, a superior advantage of non-Euclidian conformal mapping cloaks, is inherited in this design, and thus is the reason of its relatively broad bandwidth. This demonstration provides a possibility for future practical implementation of cloaking devices at large scales. |
| first_indexed | 2024-10-01T03:20:46Z |
| format | Conference Paper |
| id | ntu-10356/98792 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:20:46Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/987922020-03-07T12:31:20Z Large scale cylindrical cloak in free space without superluminal propagation Moser, Herbert O. Chen, Hongsheng Xu, Su Zhang, Baile Zhang, Runren Shen, Zhi Xu, Yang Zhang, Xianmin School of Physical and Mathematical Sciences International Workshop on Metamaterials (2012 : Nanjing, China) Despite its remarkably fast development in the past few years, the technology of invisibility cloaking is still facing many serious bottlenecks, e.g. the bandwidth, the superluminal limitation, dispersion, loss, etc. In this paper, 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 unique property of previous transformation-optics cloaking). Particularly, non-superluminal speed of light in the cloak, a superior advantage of non-Euclidian conformal mapping cloaks, is inherited in this design, and thus is the reason of its relatively broad bandwidth. This demonstration provides a possibility for future practical implementation of cloaking devices at large scales. 2013-07-31T09:10:15Z 2019-12-06T19:59:43Z 2013-07-31T09:10:15Z 2019-12-06T19:59:43Z 2012 2012 Conference Paper https://hdl.handle.net/10356/98792 http://hdl.handle.net/10220/12676 10.1109/META.2012.6464937 en |
| spellingShingle | Moser, Herbert O. Chen, Hongsheng Xu, Su Zhang, Baile Zhang, Runren Shen, Zhi Xu, Yang Zhang, Xianmin Large scale cylindrical cloak in free space without superluminal propagation |
| title | Large scale cylindrical cloak in free space without superluminal propagation |
| title_full | Large scale cylindrical cloak in free space without superluminal propagation |
| title_fullStr | Large scale cylindrical cloak in free space without superluminal propagation |
| title_full_unstemmed | Large scale cylindrical cloak in free space without superluminal propagation |
| title_short | Large scale cylindrical cloak in free space without superluminal propagation |
| title_sort | large scale cylindrical cloak in free space without superluminal propagation |
| url | https://hdl.handle.net/10356/98792 http://hdl.handle.net/10220/12676 |
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