Electromagnetic Detection of a Perfect Invisibility Cloak
A perfect invisibility cloak is commonly believed to be undetectable from electromagnetic (EM) detection because it is equivalent to a curved but empty EM space created from coordinate transformation. Based on the intrinsic asymmetry of coordinate transformation applied to motions of photons and cha...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/52535 |
| _version_ | 1826207551760367616 |
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| author | Zhang, Baile Wu, Bae-Ian |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Zhang, Baile Wu, Bae-Ian |
| author_sort | Zhang, Baile |
| collection | MIT |
| description | A perfect invisibility cloak is commonly believed to be undetectable from electromagnetic (EM) detection because it is equivalent to a curved but empty EM space created from coordinate transformation. Based on the intrinsic asymmetry of coordinate transformation applied to motions of photons and charges, we propose a method to detect this curved EM space by shooting a fast-moving charged particle through it. A broadband radiation generated in this process makes a cloak visible. Our method is the only known EM mechanism so far to detect an ideal perfect cloak (curved EM space) within its working band. |
| first_indexed | 2024-09-23T13:51:19Z |
| format | Article |
| id | mit-1721.1/52535 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:51:19Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/525352022-10-01T17:32:41Z Electromagnetic Detection of a Perfect Invisibility Cloak Zhang, Baile Wu, Bae-Ian Massachusetts Institute of Technology. Research Laboratory of Electronics Wu, Bae-Ian Zhang, Baile Wu, Bae-Ian A perfect invisibility cloak is commonly believed to be undetectable from electromagnetic (EM) detection because it is equivalent to a curved but empty EM space created from coordinate transformation. Based on the intrinsic asymmetry of coordinate transformation applied to motions of photons and charges, we propose a method to detect this curved EM space by shooting a fast-moving charged particle through it. A broadband radiation generated in this process makes a cloak visible. Our method is the only known EM mechanism so far to detect an ideal perfect cloak (curved EM space) within its working band. United States. Air Force (Air Force Contract No. FA8721-05-C-0002) United States. Office of Naval Research (Contract No. N00014-06-1-0001) 2010-03-12T16:11:21Z 2010-03-12T16:11:21Z 2009-12 2009-11 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/52535 Zhang, Baile , and Bae-Ian Wu. “Electromagnetic Detection of a Perfect Invisibility Cloak.” Physical Review Letters 103.24 (2009): 243901. © 2009 The American Physical Society en_US http://dx.doi.org/10.1103/PhysRevLett.103.243901 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Zhang, Baile Wu, Bae-Ian Electromagnetic Detection of a Perfect Invisibility Cloak |
| title | Electromagnetic Detection of a Perfect Invisibility Cloak |
| title_full | Electromagnetic Detection of a Perfect Invisibility Cloak |
| title_fullStr | Electromagnetic Detection of a Perfect Invisibility Cloak |
| title_full_unstemmed | Electromagnetic Detection of a Perfect Invisibility Cloak |
| title_short | Electromagnetic Detection of a Perfect Invisibility Cloak |
| title_sort | electromagnetic detection of a perfect invisibility cloak |
| url | http://hdl.handle.net/1721.1/52535 |
| work_keys_str_mv | AT zhangbaile electromagneticdetectionofaperfectinvisibilitycloak AT wubaeian electromagneticdetectionofaperfectinvisibilitycloak |