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Arbitrarily thin metamaterial structure for perfect absorption and giant magnification |
Optics Express, Vol. 19, Issue 12, pp. 11114-11119 (2011)
http://dx.doi.org/10.1364/OE.19.011114
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Abstract
In our common understanding, for strong absorption or amplification in a slab structure, the desire of reducing the slab thickness seems contradictory to the condition of small loss or gain. In this paper, this common understanding is challenged. It is shown that an arbitrarily thin metamaterial layer can perfectly absorb or giantly amplify an incident plane wave at a critical angle when the real parts of the permittivity and permeability of the metamaterial are zero while the absolute imaginary parts can be arbitrarily small. The metamaterial layer needs a totally reflective substrate for perfect absorption, while this is not required for giant magnification. Detailed analysis for the existence of the critical angle and physical explanation for these abnormal phenomena are given.
© 2011 OSA
OCIS Codes
(260.0260) Physical optics : Physical optics
(310.0310) Thin films : Thin films
(160.3918) Materials : Metamaterials
ToC Category:
Metamaterials
History
Original Manuscript: March 30, 2011
Revised Manuscript: May 4, 2011
Manuscript Accepted: May 17, 2011
Published: May 23, 2011
Citation
Yi Jin, Sanshui Xiao, N. Asger Mortensen, and Sailing He, "Arbitrarily thin metamaterial structure for perfect absorption and giant magnification," Opt. Express 19, 11114-11119 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-12-11114
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