Negative refraction based on purely imaginary metamaterials
- 27 April 2018
- journal article
- research article
- Published by China Engineering Science Press Co. Ltd. in Frontiers of Physics
- Vol. 13 (4) , 134206
Abstract
By introducing a new mechanism based on purely imaginary metamaterials (PIMs), we reveal that bidirectional negative refraction and planar focusing can be obtained using a pair of PIM slabs, overcoming the unidirectional limit in parity-time (PT)-symmetric systems. Compared with PT-symmetric systems, which require two different types of materials, the proposed negative refraction can be realized using two identical media. In addition, asymmetric excitation with bidirectional total transmission is observed in our PIM system. Therefore, a new way to realize negative refraction with properties that are unavailable in PT-symmetric systems is presented.Keywords
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This publication has 35 references indexed in Scilit:
- Experimental Verification of Reversed Cherenkov Radiation in Left-Handed MetamaterialPhysical Review Letters, 2009
- Negative Refractive Index in Chiral MetamaterialsPhysical Review Letters, 2009
- Time Reversal and Negative RefractionScience, 2008
- Optical Negative Refraction in Bulk Metamaterials of NanowiresScience, 2008
- Negative refraction in semiconductor metamaterialsNature Materials, 2007
- Negative refraction by photonic crystalsNature, 2003
- Goos-Hänchen shift in negatively refractive mediaPhysical Review E, 2002
- Experimental Verification of a Negative Index of RefractionScience, 2001
- Negative Refraction Makes a Perfect LensPhysical Review Letters, 2000
- THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF $\epsilon$ AND μSoviet Physics Uspekhi, 1968