Abstract
Magnetized semiconductors are generally understood to support bulk cyclotron resonance due to the free electrons’ movement driven by Lorentz force, while another surface resonance, i.e. magnetoplasmon polariton, can also exist provided a properly configured magnetic field. Here, we show that a dominate extraordinary surface magnetoplasmon resonance can be directly excited with the indium antimonide (InSb) hole array sheet under perpendicular DC magnetic field (Faraday configuration) at the terahertz regime. By applying quasi-momentum matching to the structured InSb sheet, the magnetoplasmon resonance frequencies can be theoretically calculated, which correspond well with the simulated results. In addition, the magnetoplasmon resonance frequencies can be strongly modulated by changing the applied DC magnetic field strength as well as the environmental temperature. The magneto-thermal tunability of the InSb hole array sheet may have potential applications in active photonic devices.
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