Stokes--anti-Stokes light scattering process: -- A photon-wave-function approach

TL;DR

This paper employs the photon wave function formalism to describe the correlated Stokes--anti-Stokes Raman scattering process, providing an intuitive quantum optical model that aligns with experimental observations.

Contribution

It introduces a photon-wave-function approach to model the Stokes--anti-Stokes scattering process, offering a new perspective and analytical expression for the two-photon wave function.

Findings

Derived an expression for the two-photon wave function of SaS pairs.

The model agrees with experimental results.

Provides an intuitive quantum optical description.

Abstract

The Photon wave function Formalism provides an alternative description of some quantum optical phenomena in a more intuitive way. We use this formalism to describe the process of correlated Stokes--anti-Stokes Raman scattering. In this process, two photons from a laser beam are inelastically scattered by a phonon created by the first photon (Stokes processes) and annihilated by the second photon (anti-Stokes process), producing a Stokes--anti-Sokes (SaS) photon pair. We arrive at an expression for the two-photon wave function of the scattered SaS photon pair, which is in agreement with a number of experimental results.