Unidirectional Invisibility Induced by PT-Symmetric Periodic Structures
Abbreviated Journal Title
Phys. Rev. Lett.
NON-HERMITIAN HAMILTONIANS; SCATTERING; TIME; Physics, Multidisciplinary
Parity-time (PT) symmetric periodic structures, near the spontaneous PT-symmetry breaking point, can act as unidirectional invisible media. In this regime, the reflection from one end is diminished while it is enhanced from the other. Furthermore, the transmission coefficient and phase are indistinguishable from those expected in the absence of a grating. The phenomenon is robust even in the presence of Kerr nonlinearities, and it can also effectively suppress optical bistabilities.
Physical Review Letters
"Unidirectional Invisibility Induced by PT-Symmetric Periodic Structures" (2011). Faculty Bibliography 2010s. 1566.