Symmetry-breaking instability of quadratic soliton bound states

Journal Article · Sat Jan 15 00:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.013807· OSTI ID:21537049

Delque, Michaeel ^[1]; Fanjoux, Gil; Maillotte, Herve; Kockaert, Pascal; Sylvestre, Thibaut; Haelterman, Marc ^[2]

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1. Service OPERA-photonique, CP194/5, Universite Libre de Bruxelles U.L.B. Avenue F.D. Roosevelt, B-1050 Bruxelles (Belgium)
2. Departement d'Optique P.M. Duffieux, Institut FEMTO-ST, Universite de Franche-Comte, CNRS UMR 6174, F-25030 Besancon (France)

We study both numerically and experimentally two-dimensional soliton bound states in quadratic media and demonstrate their symmetry-breaking instability. The experiment is performed in a potassium titanyl phosphate crystal in a type-II configuration. The bound state is generated by the copropagation of the antisymmetric fundamental beam locked in phase with the symmetrical second harmonic one. Experimental results are in good agreement with numerical simulations of the nonlinear wave equations.

• OSTI ID: 21537049
• Journal Information: Physical Review. A, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevA.83.013807; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAMS
BOUND STATE
COMPUTERIZED SIMULATION
CRYSTAL LATTICES
NONLINEAR PROBLEMS
PHOSPHATES
POTASSIUM COMPOUNDS
SOLITONS
SYMMETRY BREAKING
TWO-DIMENSIONAL CALCULATIONS
WAVE EQUATIONS
ALKALI METAL COMPOUNDS
CRYSTAL STRUCTURE
DIFFERENTIAL EQUATIONS
EQUATIONS
OXYGEN COMPOUNDS
PARTIAL DIFFERENTIAL EQUATIONS
PHOSPHORUS COMPOUNDS
QUASI PARTICLES
SIMULATION