TY - JOUR
T1 - Ground-state selection as a four-wave-mixing process
AU - Avidan, A.
AU - Lahini, Y.
AU - Mandelik, D.
AU - Silberberg, Y.
PY - 2006
Y1 - 2006
N2 - We study nonlinear relaxation of the excited state in a system with two levels and a continuum. The process is first simulated in a one-dimensional waveguide array described by the discrete nonlinear Schrödinger equation. The results are interpreted in terms of degenerate four-wave mixing between the eigenmodes and diffraction properties of the array. We also show analytically that the role of the continuum can be played by a third bound state, with linear loss that replaces the diffraction in the continuum. This model enables derivation of the energy transfer rate and other parameters of the process.
AB - We study nonlinear relaxation of the excited state in a system with two levels and a continuum. The process is first simulated in a one-dimensional waveguide array described by the discrete nonlinear Schrödinger equation. The results are interpreted in terms of degenerate four-wave mixing between the eigenmodes and diffraction properties of the array. We also show analytically that the role of the continuum can be played by a third bound state, with linear loss that replaces the diffraction in the continuum. This model enables derivation of the energy transfer rate and other parameters of the process.
UR - http://www.scopus.com/inward/record.url?scp=33745046364&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.73.063811
DO - 10.1103/PhysRevA.73.063811
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AN - SCOPUS:33745046364
SN - 1050-2947
VL - 73
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6
M1 - 063811
ER -