旋转下的完美圆柱形斗篷,非惯性效应使完美斗篷可见
Perfect cylindrical cloak under gyration, Non-inertial effects make perfect cloak visible
摘要:
在这项研究中,非惯性效应的影响,所造成的旋转运动,对圆柱形完美的斗篷进行了模拟。研究了平面波、高斯正弦和高斯脉冲之间的相互作用。结果表明,在Sagnac和磁电探测器旋转频率较低的情况下,非惯性理想隐身衣可以被探测到,波形图的畸变很小,可以忽略不计,但随着旋转频率的增加,波形图的畸变变得很大,并形成小波,其强度增大. effects.at旋转方向可以影响散射图案,因此,可以通过散射图案分析来识别旋转方向。此外,可以准备关于电场相位延迟的用于测量旋转速度的方法。模拟计算使用时域有限差分方法通过将麦克斯韦方程组从非惯性框架转换到实验室框架。
英文摘要:
In this study, the impact of non-inertial effects, caused by rotational motion, on the cylindrical perfect cloak is simulated. Also, the interactions between plane waves, Gaussian sine, and Gaussian pulse are investigated. it is shown that non-inertial perfect cloak could be detectable with the Sagnac and magnetoelectric effects.at low frequency of gyration, the distortion of waveform pattern is humble and negligible, however when the rotational frequency increases, the pattern distortion becomes huge and wavelets are formed and their intensity grows up. the scattering pattern can be influenced by the direction of rotation, thus, the direction of rotation could be identified with the scattering pattern analysis. Also, a method for measuring rotational velocity can be prepared concerning the electric field phase retardation. the simulation is computed using the FDTD methods by transforming the Maxwell's equations from non-inertial frameworks to the lab framework.
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