Bragg-type soliton mirror
  We study soliton reflection/transmission at the interface between uniform medium and the optical lattice with focusing Kerr nonlinearity. We reveal that such interfaces afford rich new opportunities for controlling the reflection and transmission coefficients and nonlinear Snell law, the key control parameters being the spatial frequency and depth of the lattice. 
Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner