Abbreviated Journal Title
Phys. Rev. A
SUPERLATTICES; GRATINGS; SPECTRA; Optics; Physics, Atomic, Molecular & Chemical
It is shown that slow Bragg soliton solutions are possible in nonlinear complex parity-time (PT) symmetric periodic structures. Analysis indicates that the PT-symmetric component of the periodic optical refractive index can modify the grating band structure and hence the effective coupling between the forward and backward waves. Starting from a classical modified massive Thirring model, solitary wave solutions are obtained in closed form. The basic properties of these slow solitary waves and their dependence on their respective PT-symmetric gain-loss profile are then explored via numerical simulations.
Physical Review A
Miri, Mohammad-Ali; Aceves, Alejandro B.; Kottos, Tsampikos; Kovanis, Vassilios; and Christodoulides, Demetrios N., "Bragg solitons in nonlinear PT-symmetric periodic potentials" (2012). Faculty Bibliography 2010s. 3036.