Total transmission and total reflection by zero index metamaterials with defects
In this Letter, we theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to free space, with the permittivity and permeability tending towards zero over a given frequency range. By simply varying the r...
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sg-ntu-dr.10356-939422023-07-14T15:53:05Z Total transmission and total reflection by zero index metamaterials with defects Chen, Lang Nguyen, Viet Cuong Halterman, Klaus School of Materials Science & Engineering DRNTU::Science::Physics::Optics and light DRNTU::Engineering::Materials::Photonics and optoelectronics materials In this Letter, we theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to free space, with the permittivity and permeability tending towards zero over a given frequency range. By simply varying the radii and permittivities of the defects, total transmission or reflection of the impinging electromagnetic wave can be achieved. The proposed defect structure can offer advances in shielding or cloaking technologies without restricting the object’s viewpoint. Active control of the observed exotic transmission and reflection signatures can occur by incorporating tunable refractive index materials such as liquid crystals and BaSr TiO3. Accepted version 2011-10-05T03:55:16Z 2019-12-06T18:48:14Z 2011-10-05T03:55:16Z 2019-12-06T18:48:14Z 2010 2010 Journal Article Nguyen, V. C., Chen, L., & Halterman, K. (2010). Total Transmission and Total Reflection by Zero Index Metamaterials with Defects. Physical Review Letters, 105(23). https://hdl.handle.net/10356/93942 http://hdl.handle.net/10220/7157 10.1103/PhysRevLett.105.233908 en Physical review letters © 2010 American Physical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by International Physical Review Letters, American Physical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at DOI: http://dx.doi.org/10.1103/PhysRevLett.105.233908. 5 p. application/pdf |
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DRNTU::Science::Physics::Optics and light DRNTU::Engineering::Materials::Photonics and optoelectronics materials Chen, Lang Nguyen, Viet Cuong Halterman, Klaus Total transmission and total reflection by zero index metamaterials with defects |
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In this Letter, we theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to free space, with the permittivity and permeability tending towards zero over a given frequency range. By simply varying the radii and permittivities of the defects, total transmission or reflection of the impinging electromagnetic wave can be achieved. The proposed defect structure can offer advances in shielding or cloaking technologies without restricting the object’s viewpoint. Active control of the observed exotic transmission and reflection signatures can occur by incorporating tunable refractive index materials such as liquid crystals and BaSr TiO3. |
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School of Materials Science & Engineering |
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School of Materials Science & Engineering Chen, Lang Nguyen, Viet Cuong Halterman, Klaus |
format |
Article |
author |
Chen, Lang Nguyen, Viet Cuong Halterman, Klaus |
author_sort |
Chen, Lang |
title |
Total transmission and total reflection by zero index metamaterials with defects |
title_short |
Total transmission and total reflection by zero index metamaterials with defects |
title_full |
Total transmission and total reflection by zero index metamaterials with defects |
title_fullStr |
Total transmission and total reflection by zero index metamaterials with defects |
title_full_unstemmed |
Total transmission and total reflection by zero index metamaterials with defects |
title_sort |
total transmission and total reflection by zero index metamaterials with defects |
publishDate |
2011 |
url |
https://hdl.handle.net/10356/93942 http://hdl.handle.net/10220/7157 |
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1772828131480043520 |