Large Cross-Phase Modulation between Slow Co-propagating Weak Pulses in Rb

Abstract

We propose a scheme to generate double electromagnetically induced transparency and optimal cross-phase modulation for two slow, copropagating pulses with matched group velocities in a single species of atom, namely 87 Rb. A single pump laser is employed and a homogeneous magnetic field is utilized to avoid cancellation effects through the nonlinear Zeeman effect. We suggest a feasible preparational procedure for the atomic initial state to achieve matched group velocities for both signal fields.

4 pages, 2 figures

References in corpus (2)

• Stationary pulses of light in an atomic medium
• Magneto-optical rotation and cross-phase modulation via coherently driven tripod atoms

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