supported by the National Natural Science Foundation of China(No.10674176);the National Foundation of Shaanxi Provincial Department of Education(No.17JK0389)
We theoretically study the evolution of dark solitons in the biased photorefractive-photovoltaic crystal by using beam propagation method(BPM). We find that when the absolute value of the extra bias field is less than...
Supported by the National Natural Science Foundation of China(No 10674176).
We study two families of two-dimensional bright lattice solitons in photovoltaic-photorefractive crystals.It is shown that self-focusing and self-defocusing lattice solitons are possible only when their power level ex...
supported by the National Natural Science Foundation of China (Grant No. 10674176)
We show that incoherently coupled soliton pairs can exist in nonlocal Kerr-type nonlinear media. Such solitons can propagate in bright--bright, dark--dark, and gray--gray configurations. When the nonlocal nonlinearity...
Project supported by the National Natural Science Foundation of China (Grant No 10674176)
Based on the time-dependent band-transport model in a photorefractive medium,dark open-circuit photovoltaic (PV) solitons are investigated both theoretically and experimentally. Compared with those of the time-indep...
Project supported by the Major Program of the National Natural Science Foundation of China (Grant No 10674176)
This paper studies numerically the dark incoherent spatial solitons propagating in logarithmically saturable nonlinear media by using a coherent density approach and a split-step Fourier approach for the first time. U...