State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen (Zhongshan) University, Guangzhou 510275, China.
Phys Rev Lett. 2011 Jul 8;107(2):023901. doi: 10.1103/PhysRevLett.107.023901. Epub 2011 Jul 6.
A strategy is proposed to realize robust transport in a time reversal invariant photonic system. Using numerical simulation and a microwave experiment, we demonstrate that a chiral guided mode in the channel of a three-dimensional dielectric layer-by-layer photonic crystal is immune to the scattering of a square patch of metal or dielectric inserted to block the channel. The chirality based robust transport can be realized in nonmagnetic dielectric materials without any external field.
提出了一种在时间反转不变光子系统中实现稳健传输的策略。通过数值模拟和微波实验，我们证明了在三维介电层状光子晶体通道中的手性导模对插入以阻挡通道的金属或介电正方形贴片的散射具有抗干扰能力。基于手性的稳健传输可以在没有任何外部场的情况下在非磁性介电材料中实现。
