A strategy is proposed to realize robust transport in a time reversal invariant photonic system. It is a counterpart to a similar problem that the topologically protected modes in electronic topological insulator.
© 2012 OSA
C. Wen-Jie, Z. Hang, J. Dong, H. Wang, and C. T. Chan, "Observation of Backscattering-Immune Tunnelling States Without External Magnetic Fields," in Frontiers in Optics 2012/Laser Science XXVIII, OSA Technical Digest (online) (Optical Society of America, 2012), paper FTh3D.8.
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