Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3089842
Keywords
metamaterials; microstrip lines; nonlinear optics; optical parametric amplifiers; transmission lines
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Funding
- Australian Research Council.
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We study parametric amplification in nonlinear left-handed transmission lines, which serve as model systems for nonlinear negative-index metamaterials. We experimentally demonstrate the amplification of a weak signal in the three following regimes: with the signal in the left-handed band, with the signal in the stop band, and with the signal at a defect frequency. In particular, we demonstrate the amplification of the incident wave by up to 15 dB in the left-handed regime.
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