Wide-band negative permeability of nonlinear metamaterials.
We propose a novel way to achieve an exceptionally wide frequency range where metamaterial possesses negative effective permeability. This can be achieved by employing a nonlinear response of metamaterials. We demonstrate that, with an appropriate design, a frequency band exceeding 100% is available for a range of signal amplitudes. Our proposal provides a significant improvement over the linear approach, opening a road towards broadband negative refraction and its applications.
Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, NSW 2006, Australia. mlapine@physics.usyd.edu.au
Mikhail
M
Lapine
Ilya
I
Shadrivov
Yuri
Y
Kivshar
D003198:Computer Simulation; D004867:Equipment Design; D008420:Manufactured Materials / Q000592:standards*; D008422:Materials Testing; D017711:Nonlinear Dynamics; D055096:Optical Devices / Q000592:standards*; D012031:Refractometry / Q000295:instrumentation / Q000379:methods / Q000592:standards*; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted