TY  - JOUR
TI  - Effect of Nonlinearity on Adiabatic Evolution of Light
SN  - 0031-9007
IS  - 19
VL  - 101
AV  - public
KW  - DIRECTIONAL COUPLER
KW  -  POPULATION TRANSFER
KW  -  MOLECULES
KW  -  ATOMS
N1  - © 2008 The American Physical Society
ID  - discovery704723
JF  - PHYS REV LETT
UR  - http://dx.doi.org/10.1103/PhysRevLett.101.193901
PB  - AMER PHYSICAL SOC
N2  - We investigate the effect of nonlinearity in a system described by an adiabatically evolving Hamiltonian. Experiments are conducted in a three-core waveguide structure that is adiabatically varying with distance, in analogy to the stimulated Raman adiabatic passage process in atomic physics. In the linear regime, the system exhibits an adiabatic power transfer between two waveguides which are not directly coupled, with negligible power recorded in the intermediate coupling waveguide. In the presence of nonlinearity the adiabatic light passage is found to critically depend on the excitation power. We show how this effect is related to the destruction of the dark state formed in this configuration.
Y1  - 2008/11/07/
A1  - Lahini, Y
A1  - Pozzi, F
A1  - Sorel, M
A1  - Morandotti, R
A1  - Christodoulides, DN
A1  - Silberberg, Y
ER  -