光电子学
磁电机
物理
极化(电化学)
表面等离子体激元
凝聚态物理
作者
Tengfei Li,Fei Fan,Yun-Yun Ji,Zhiyu Tan,Qianyi Mu,Shengjiang Chang
出处
期刊:Optics Letters
[The Optical Society]
日期:2020-01-01
卷期号:45 (1): 1-4
被引量:20
摘要
The transverse magneto-optical (MO) effect of InSb has been theoretically and experimentally investigated in the terahertz (THz) regime. The calculated photonic band structure and experimental measurements show that a unique circularly polarized magneto plasmon mode, and a linearly polarized transverse magnetic mode can be sensitively manipulated by a weak magnetic field. Moreover, these results indicate that transverse magnetized InSb can be used as a THz tunable high-pass filter and a MO modulator. The cutoff frequency of the filter can be broadly tuned from 0.4 to 0.8 THz when the magnetic field changes from 0 to 0.22 T, and the modulation depth of 20 dB can be obtained. This research has significance for the deep understanding to the THz MO effect of InSb and promotes the development of THz MO devices.
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