TY - JOUR
T1 - Spontaneous symmetry breaking in a double-defect nonlinear grating
AU - De Sterke, C. Martijn
AU - Kabakova, Irina V.
AU - Uddin, Ishraq
AU - Jeyaratnam, Jonathan
AU - Malomed, Boris A.
PY - 2013/9/13
Y1 - 2013/9/13
N2 - We study spontaneous symmetry breaking in localized modes trapped by a pair of defects embedded in a Bragg grating written in a Kerr-nonlinear material. While the system has two symmetric modes at low energies, the nonlinearity renders one of these unstable in favor of an asymmetric mode emerging at sufficiently high energies. Using a simple semianalytic model, we explain this transition as originating from the degeneracy between a state in a grating with two defects and state in a grating with a single defect.
AB - We study spontaneous symmetry breaking in localized modes trapped by a pair of defects embedded in a Bragg grating written in a Kerr-nonlinear material. While the system has two symmetric modes at low energies, the nonlinearity renders one of these unstable in favor of an asymmetric mode emerging at sufficiently high energies. Using a simple semianalytic model, we explain this transition as originating from the degeneracy between a state in a grating with two defects and state in a grating with a single defect.
UR - http://www.scopus.com/inward/record.url?scp=84884871296&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.88.033825
DO - 10.1103/PhysRevA.88.033825
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AN - SCOPUS:84884871296
SN - 1050-2947
VL - 88
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033825
ER -