Chinese Optics Letters, 2015, 13 (5): 051601, Published Online: Sep. 20, 2018
Actively tunable metamaterial resonators based on colossal magnetoresistance in the infrared regime Download: 971次
160.3918 Metamaterials 260.5740 Resonance 050.1755 Computational electromagnetic methods 260.2110 Electromagnetic optics
Abstract
We present a tunable resonator consisting of a colossal magnetoresistant cross in which a smaller gold cross is embedded. Simulations show the resonance frequencies of the resonator move into the infrared regime when there is a change in the intensity of the external magnetic field applied to the resonator. The source of the tunability is the variance in the colossal magnetoresistance in the resonator when the intensity of the magnetic field changes, which accordingly leads to a shift in the resonance frequency. Such a method offers a new way to achieve tunability, which has potential applications in controllable photoelectric elements.
Cheng Wang, Changchun Yan, Jiebing Tian, Ying Han, Rongyuan Zou, Dongdong Li, Daohua Zhang. Actively tunable metamaterial resonators based on colossal magnetoresistance in the infrared regime[J]. Chinese Optics Letters, 2015, 13(5): 051601.