Stable multicolor periodic-wave arrays.
We study the existence and stability of periodic-wave arrays propagating in uniform quadratic nonlinear media and discover that they become completely stable above a threshold light intensity. To the best of our knowledge, this is the first example in physics of completely stable periodic-wave patterns propagating in conservative uniform media supporting bright solitons.
Kartashov
Yaroslav V
YV
ICFO-Institut de Ciencies Fotoniques, and Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, E-08034 Barcelona, Spain.
Egorov
Alexey A
AA
Zelenina
Anna S
AS
Vysloukh
Victor A
VA
Torner
Lluis
L