Long-range interactions of double beams in party-time symmetric lattices in the presence of nonlocal nonlinearities
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The co-propagation of double beams in party-time symmetric lattices in the presence of nonlocal nonlinearities has been investigated. An interesting phenomenon has been found that the energy of the beam in the right side has increased almost monotonously, while it oscillates in the absence of nonlinearities. The energy increase can be controlled by adjusting the incident angle of the beam in the left side, since light propagating in party-time symmetric arrays can distinguish left from right. This findings pave the way to all-optical controls in the nonlinear regime.
Natural Science Foundation of Guangdong Province, China (2016A030313428).
- 14.X. Chen, G. Zhang, H. Zeng, Q. Guo, W. She, Advances in Nonlinear Optics (De Gruyter, Berlin, 2015), pp. 227–305Google Scholar