Correlation enhanced phase sensitive Raman scattering in atomic vapors

TL;DR

This paper proposes a method to enhance Raman scattering in atomic vapors by injecting a correlated seeded light field, leveraging phase-sensitive interference for potential applications in quantum information and metrology.

Contribution

It introduces a novel phase-sensitive enhancement technique for Raman scattering using light-atom correlations, which is simple and effective.

Findings

Raman scattering can be significantly enhanced through phase-sensitive interference.

Injected seed light correlated with atomic spin wave improves scattering efficiency.

The method has potential applications in quantum information and optical metrology.

Abstract

We theoretically propose a method to enhance Raman scattering by injecting a seeded light field which is correlated with the initially prepared atomic spin wave. Such a light-atom correlation leads to an interference in the Raman scattering. The interference is sensitive to the relative phase between the seeded light field and initially prepared atomic spin wave. For constructive interference, the Raman scattering is greatly enhanced. Such an enhanced Raman scattering may find applications in quantum information, nonlinear optics and optical metrology due to its simplicity.