In this Letter, we study the excitation of gap solitons under the conditions of coherent perfect absorption. Our system consists of a symmetric periodic structure with alternating Kerr nonlinear and linear layers illuminated from both ends. We show near-total transfer of incident light energy into the gap solitons resulting in null scattering. We also report on the nonlinear super-scattering states. Both the exact and the approximate results, which show good agreement based on nonlinear characteristic matrix methods, are presented.
© 2014 Optical Society of America
Original Manuscript: February 20, 2014
Revised Manuscript: March 10, 2014
Manuscript Accepted: March 10, 2014
Published: April 8, 2014
K. Nireekshan Reddy and S. Dutta Gupta, "Gap solitons with null-scattering," Opt. Lett. 39, 2254-2257 (2014)