Actively tunable metamaterial resonators based on colossal magnetoresistance in the infrared regime

被引：7
作者：
Wang, Cheng [1 ]
Yan, Changchun [1 ]
Tian, Jiebing [1 ]
Han, Ying [1 ]
Zou, Rongyuan [1 ]
Li, Dongdong [1 ]
Zhang, Daohua [2 ]
机构：
[1] Jiangsu Normal Univ, Jiangsu Key Lab Adv Laser Mat & Devices, Sch Phys & Elect Engn, Xuzhou 221116, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
来源：
CHINESE OPTICS LETTERS | 2015年 / 13卷 / 05期
基金：
中国国家自然科学基金;
关键词：
NEGATIVE-INDEX;
D O I：
10.3788/COL201513.051601
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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.
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页数：4
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