Title :
Microwave metamaterials with competing light-controllable nonlinear response
Author :
Kapitanova, Polina V. ; Slobozhanyuk, A.P. ; Belov, P.A. ; Shadrivov, I.V. ; Kivshar, Yuri S.
Author_Institution :
Nat. Res. Univ. of Inf. Technol., Mech. & Opt. (NRU ITMO), St. Petersburg, Russia
Abstract :
A novel approach to design metamaterials with competing nonlinear response is reported. As meta-atoms of metamaterial a split-ring resonator loaded by a varactor diode which constant bias is supplied by a photodiode is considered. A nonmonotonic frequency shift of the split-ring resonator response on incident microwave power is demonstrated. Additionally, the focusing or defocusing nonlinear response of such split-ring resonator can be controlled illuminating the photodiode by light.
Keywords :
microwave metamaterials; microwave resonators; photodiodes; varactors; competing nonlinear response; constant bias; incident microwave power; light-controllable nonlinear response; meta-atoms; microwave metamaterials; nonmonotonic frequency shift; photodiode; split-ring resonator response; varactor diode; Frequency measurement; Magnetic materials; Metamaterials; Photodiodes; Reflection coefficient; Resonant frequency; Varactors; metamaterial; microwave; nonlinearity; tunable split-ring resonator;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
