Microwave controlled efficient Raman and sub-Raman generation

TL;DR

This paper presents a microwave-controlled method to efficiently generate and manipulate Raman and sub-Raman fields in atomic vapor using atomic coherence, enabling control over generation efficiency at lower optical densities.

Contribution

It introduces a novel scheme utilizing microwave-induced atomic coherence to enhance Raman field generation efficiency in a three-level atomic system.

Findings

Generation efficiency can be controlled by microwave phase and amplitude.

Efficient Raman and sub-Raman generation at lower optical densities.

Explicit demonstration of coherence manipulation for field control.

Abstract

We propose an efficient scheme for the generation and the manipulation of Raman fields in an homogeneously broadened atomic vapor in a closed three levels $\Lambda$-configuration. The key concept in generating the Raman and sub-Raman fields efficiently at lower optical densities involve the microwave induced atomic coherence of the lower levels. We show explicitly that, generation efficiency of the Raman fields can be controlled by manipulating the coherences via phase and amplitude of the microwave field.