title: Dependence of enhanced Kerr nonlinearity on coupling power in a three-level atomic system.
abstract: We study the enhanced Kerr-nonlinear coefficient in a three-level A-type atomic system for various coupling-beam powers. The Kerr-nonlinear coefficient behaves very differently in the strong and the weak coupling power regions and changes sign when the coupling or probe frequency detuning changes sign. Comparisons of Kerr-nonlinear coefficients as functions of probe frequency detuning, coupling power, and coupling frequency detuning are presented.
authors.forename: Hai
authors.initials: H
authors.lastname: Wang
authors.forename: David
authors.initials: D
authors.lastname: Goorskey
authors.forename: Min
authors.initials: M
authors.lastname: Xiao