Abstract
We numerically study the nonlocal solitons in dual-periodic parity-time () symmetric optical lattices built into a nonlocal self-focusing medium. We state the existence, stability, and propagation dynamics of such -gap solitons in detail. Simulated results show that there exist stable gap solitons. The energy flow density and the stable region of the -gap solitons in both the propagation constant and the degree of nonlocality are also examined.
- Received 8 February 2012
DOI:https://doi.org/10.1103/PhysRevA.86.023840
©2012 American Physical Society