Metamaterial-based graphene thermal emitter
Metamaterial-based graphene thermal emitter
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DOI：
10.1007/s12274-017-1922-7
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发表时间：
2018-07-01
期刊：
影响因子：
9.9
通讯作者：
Nash, Geoffrey R.
中科院分区：
文献类型：
--
作者：
Shi, Cheng;Mahlmeister, Nathan H.;Nash, Geoffrey R.
介绍了一种由频率选择性表面超材料层和六方氮化硼封装石墨烯灯丝组成的热发射器。将环形谐振器组成的超材料的宽带热辐射裁剪为两个离散波段，测量的反射和发射光谱与模拟结果吻合较好。在这些设备中可以获得的高调制频率，加上它们在空气中的操作，证实了它们在气体传感等应用中的可行性。
A thermal emitter composed of a frequency-selective surface metamaterial layer and a hexagonal boron nitride-encapsulated graphene filament is demonstrated. The broadband thermal emission of the metamaterial (consisting of ring resonators) was tailored into two discrete bands, and the measured reflection and emission spectra agreed well with the simulation results. The high modulation frequencies that can be obtained in these devices, coupled with their operation in air, confirm their feasibility for use in applications such as gas sensing.