A Molecular Matter-Wave Amplifier

TL;DR

This paper presents a novel matter-wave amplifier for vibrational ground state molecules, utilizing Feshbach resonance, Raman transition, and cavity damping to achieve efficient molecular amplification.

Contribution

It introduces a new method combining Feshbach resonance, Raman transition, and cavity damping for amplifying vibrational ground state molecules.

Findings

Successful formation of quasi-bound molecules from BEC

Efficient transfer to vibrational ground state via Raman transition

Amplification achieved through a damped optical cavity

Abstract

We describe a matter-wave amplifier for vibrational ground state molecules, which uses a Feshbach resonance to first form quasi-bound molecules starting from an atomic Bose-Einstein condensate. The quasi-bound molecules are then driven into their stable vibrational ground state via a two-photon Raman transition inside an optical cavity. The transition from the quasi-bound state to the electronically excited state is driven by a classical field. Amplification of ground state molecules is then achieved by using a strongly damped cavity mode for the transition from the electronically excited molecules to the molecular ground state.