Dispersive properties and giant Kerr non-linearities in Dipole Induced Transparency

Abstract

We calculate the dispersive properties of the reflected field from a cavity coupled to a single dipole. We show that when a field is resonant with the dipole it experiences a 90 degree phase shift relative to reflection from a bare cavity if the Purcell factor exceeds the bare cavity reflectivity. We then show that optically Stark shifting the dipole with a second field can be used to achieve giant Kerr non-linearites. It is shown that currently achievable cavity lifetimes and cavity quality factors can allow a single emitter in the cavity to impose a nonlinear $\pi$ phase shift at the single photon level.

References in corpus (4)

• Scalable photonic quantum computation through cavity-assisted interaction
• A near deterministic linear optical CNOT gate
• Dipole induced transparency in drop-filter cavity-waveguide systems
• Enhanced single-photon emission from a quantum dot in a micropost microcavity

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