半金属
Dirac(视频压缩格式)
电介质
折射率
凝聚态物理
光子晶体
费米能级
Weyl半金属
光子学
材料科学
物理
光学
光电子学
带隙
量子力学
电子
中微子
作者
B. Yahyapour,Behrooz Rezaei
摘要
In this paper, we investigate the formation of a photonic terajet and tune its optical properties using the high-resolution finite-difference time-domain method. A Dirac semimetal is coated onto the surface of a dielectric rod and illuminated with an incident plane wave. The refractive index of the Dirac semimetal can be modulated by changing its Fermi energy. It was demonstrated that the presence of the Dirac semimetal layer can significantly affect the characteristics of the photonic terajet, such as focal distance, intensity, full-width at half maximum, and length.
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