@article{SetzpfandtSohlerSchieketal.2015, author = {Frank Setzpfandt and Wolfgang Sohler and Roland Schiek and Thomas Pertsch}, title = {Nonlinear coupling in discrete optical waveguide arrays with quadratic nonlinearity}, journal = {Physical Review A}, volume = {92}, number = {4}, doi = {10.1103/PhysRevA.92.043832}, year = {2015}, }