Unidirectional Spectral Singularities

作者:Ramezani Hamidreza*; Li Hao Kun; Wang Yuan; Zhang Xiang
来源:Physical Review Letters, 2014, 113(26): 263905.
DOI:10.1103/PhysRevLett.113.263905

摘要

We propose a class of spectral singularities emerging from the coincidence of two independent singularities with highly directional responses. These spectral singularities result from resonance trapping induced by the interplay between parity-time symmetry and Fano resonances. At these singularities, while the system is reciprocal in terms of a finite transmission, a simultaneous infinite reflection from one side and zero reflection from the opposite side can be realized.

  • 出版日期2014-12-30