TY - JOUR
T1 - Observation of surface gap solitons in semi-infinite waveguide arrays
AU - Rosberg, Christian R.
AU - Neshev, Dragomir N.
AU - Krolikowski, Wieslaw
AU - Mitchell, Arnan
AU - Vicencio, Rodrigo A.
AU - Molina, Mario I.
AU - Kivshar, Yuri S.
PY - 2006
Y1 - 2006
N2 - We report on the observation of surface gap solitons found to exist at the interface between uniform and periodic dielectric media with defocusing nonlinearity. We demonstrate strong self-trapping at the edge of a LiNbO3 waveguide array and the formation of staggered surface solitons with propagation constant inside the first photonic band gap. We study the crossover between linear repulsion and nonlinear attraction at the surface, revealing the mechanism of nonlinearity-mediated stabilization of the surface gap modes.
AB - We report on the observation of surface gap solitons found to exist at the interface between uniform and periodic dielectric media with defocusing nonlinearity. We demonstrate strong self-trapping at the edge of a LiNbO3 waveguide array and the formation of staggered surface solitons with propagation constant inside the first photonic band gap. We study the crossover between linear repulsion and nonlinear attraction at the surface, revealing the mechanism of nonlinearity-mediated stabilization of the surface gap modes.
UR - http://www.scopus.com/inward/record.url?scp=33747810803&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.97.083901
DO - 10.1103/PhysRevLett.97.083901
M3 - Article
SN - 0031-9007
VL - 97
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
M1 - 083901
ER -