This work demonstrates the magnetic field-induced spectral properties of metamaterials incorporating both indium antimonide (InSb) and tungsten (W) in the terahertz (THz) frequency regime. Nanostructure materials, layer thicknesses and surface grating fill factors are modified, impacting light-matter interactions and consequently modifying thermal emission. We describe and validate a method for determining spectral properties of InSb under an applied direct current (DC) magnetic field, and employ this method to analyze how these properties can be tuned by modulating the field magnitude. Notably, an InSb-W metamaterial exhibiting unity narrowband emission is designed, suitable as an emitter for wavelengths around 55 µm (approximately 5.5 THz), which is magnetically tunable in bandwidth and peak wavelength.

中文翻译：

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InSb 基超材料在太赫兹频率范围内的磁场诱导发射率调谐

这项工作展示了在太赫兹 (THz) 频率范围内结合锑化铟 (InSb) 和钨 (W) 的超材料的磁场诱导光谱特性。纳米结构材料、层厚度和表面光栅填充因子被修改，影响光与物质的相互作用，从而改变热发射。我们描述并验证了一种在施加直流 (DC) 磁场下确定 InSb 光谱特性的方法，并采用这种方法来分析如何通过调制场幅度来调整这些特性。值得注意的是，的InSb-W超材料参展统一窄带发射被设计，适合作为用于围绕55的波长的发射极μ米（约5.5赫兹），这是在带宽和峰值波长可调谐的磁性。