Abstract
A method for modulating transverse magnetic intrinsic graphene plasmons by temperature is proposed. In contrast to existing 2D or 3D infinite graphene structures, an intrinsic graphene 3D finite structure with periodicity in all three directions is designed. At the matching point, where the dispersion curve of the intrinsic graphene plasmons intersects with that of electromagnetic radiation, the intrinsic graphene plasmons and electromagnetic radiation can be excited by each other; in other words, the plasmon can be excited by light without additional mechanisms. Furthermore, the influence of environment temperature on the matching point is shown. The study reveals that the plasmon modulation is adaptive to the temperature. These results are beneficial for the design of compact graphene‐based optoelectronic devices.
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