Journal of Physics B Atomic Molecular and Optical Physics
Phase control of the Kerr nonlinearity in electromagnetically induced transparency media
Hui Sun, Yueping Niu, Shiqi Jin, Shangqing Gong
Abstract
We investigate an enhancement of the Kerr nonlinearity in phase-dependent double electromagnetically induced transparency (EIT) media. We find, by changing the relative phase of the driven fields, that the properties of EIT and the Kerr nonlinearity can be modified significantly. Choosing the relative phase appropriately, a giant Kerr nonlinearity can be achieved with vanishing absorptions.