# Suppression of Four-Wave Mixing in Hot Rubidium Vapor Using Ladder Scheme Raman Absorption

## TL;DR

This paper demonstrates effective suppression of four-wave mixing in hot rubidium vapor by employing a ladder scheme Raman absorption, enhancing control over nonlinear optical processes in atomic media.

## Contribution

It introduces a novel approach using ladder scheme Raman absorption to suppress four-wave mixing in rubidium vapor, with experimental validation.

## Key findings

- Successful suppression of four-wave mixing in EIT and far-detuned Raman regimes.
- Demonstration of configurations involving multiple rubidium isotopes.
- Potential for improved nonlinear optical control in atomic systems.

## Abstract

We experimentally investigate the effectiveness of the four-wave mixing suppression in a double-lambda interaction scheme by introducing an additional ladder-type two-photon Raman absorption resonance for one of the optical fields. We propose several possible interaction configurations involving either one or two isotopes of Rb, and experimentally demonstrate the possibility of efficient four-wave mixing suppression in both EIT and far-detuned Raman cases.