Localized modes in ${\chi }^{(2)}$ media with $\PT$-symmetric localized potential

F. C. Moreira, F. Kh. Abdullaev, V. V. Konotop +1

We study the existence and stability of solitons in the quadratic nonlinear media with spatially localized $\mathcal{P}\mathcal{T}$-symmetric modulation of the linear refractive index. Families…