Tunneling-induced high efficiency four-wave mixing in an asymmetric quantum wells

TL;DR

This paper proposes a novel asymmetric quantum wells structure with resonant tunneling to significantly enhance four-wave mixing efficiency, enabling effective generation of coherent long-wavelength radiation in solid-state systems.

Contribution

It introduces a new quantum wells design leveraging resonant tunneling to achieve high-efficiency four-wave mixing with low pump power.

Findings

FWM efficiency is dramatically increased near the center frequency.

Resonant tunneling enhances nonlinear optical interactions in quantum wells.

The scheme enables generation of coherent long-wavelength radiation.

Abstract

An asymmetric double quantum wells (QWs) structure with resonant tunneling is suggested to achieve high efficient four wave mixing (FWM). We analytically demonstrate that the resonant tunneling can induce high efficient mixing wave in such a semiconductor structure with a low light pump wave. In particular, the FWM conversion efficiency can be enhanced dramatically in the vicinity of the center frequency. This interesting scheme may be used to generate coherent long-wavelength radiation in solid-state system.