Tunneling-induced large cross-phase modulation in an asymmetric quantum well.
We propose an asymmetric double AlGaAs/GaAs quantum well structure with a common continuum to generate a large cross-phase modulation (XPM). It is found, owing to resonant tunneling, that a large XPM can be achieved with vanishing linear and two-photon absorptions.
Sun
Hui
H
State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Niu
Yueping
Y
Li
Ruxin
R
Jin
Shiqi
S
Gong
Shangqing
S