Li Xingcai, Wang Juan, Zhang Jinghong
School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan, 750021, China.
Ningxia Key Laboratory of Intelligent Sensing& Desert Information, Ningxia University, Yinchuan, 750021, China.
Sci Rep. 2021 Oct 14;11(1):20467. doi: 10.1038/s41598-021-00124-w.
We investigate, both theoretically and numerically, the equivalence relationship between the positive and negative refraction index dielectric materials in electrostatic invisibility cloak. We have derived an analytical formula that enables fast calculate the corresponding positive dielectric constant from the negative refraction index material. The numerical results show that the negative refraction index material can be replaced by the positive refractive index materials in the static field cloak. This offers some new viewpoints for designing new sensing systems and devices in physics, colloid science, and engineering applications.
我们从理论和数值两方面研究了静电隐身斗篷中正负折射率介电材料之间的等效关系。我们推导出了一个解析公式，能够根据负折射率材料快速计算出相应的正介电常数。数值结果表明，在静电场斗篷中，负折射率材料可以被正折射率材料替代。这为在物理、胶体科学和工程应用中设计新的传感系统和设备提供了一些新的观点。
