Phase conjugation and negative refraction using nonlinear active metamaterials.
Data(s) |
17/09/2010
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Identificador |
http://www.ncbi.nlm.nih.gov/pubmed/20867644 Phys Rev Lett, 2010, 105 (12), pp. 123905 - ? http://hdl.handle.net/10161/4301 1079-7114 |
Idioma(s) |
ENG en_US |
Relação |
Phys Rev Lett 10.1103/PhysRevLett.105.123905 Physical Review Letters |
Tipo |
Journal Article |
Cobertura |
United States |
Resumo |
We present an experimental demonstration of phase conjugation using nonlinear metamaterial elements. Active split-ring resonators loaded with varactor diodes are demonstrated theoretically to act as phase-conjugating or time-reversing discrete elements when parametrically pumped and illuminated with appropriate frequencies. The metamaterial elements were fabricated and shown experimentally to produce a time-reversed signal. Measurements confirm that a discrete array of phase-conjugating elements act as a negatively refracting time-reversal rf lens only 0.12λ thick. |
Formato |
123905 - ? |