Asymmetric parametric amplification in nonlinear left-handed transmission lines
We study parametric amplification in nonlinear left-handed transmission lines, which serve as model systems for nonlinear negative index metamaterials. We experimentally demonstrate amplification of a weak pump signal in three 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 15dB in the left-handed regime.
|Collections||ANU Research Publications|
|Source:||Applied Physics Letters|
|01_Powell_Asymmetric_parametric_2009.pdf||Published Version||274.89 kB||Adobe PDF|
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