Enhancement of photon intensity in forced coupled quantum wells inside a semiconductor microcavity

TL;DR

This paper investigates how external periodic forcing can significantly enhance photon emission in a semiconductor microcavity with multiple quantum wells, revealing a critical transition point for photon intensity.

Contribution

It introduces a numerical analysis of photon emission dynamics in coupled quantum wells under external forcing, highlighting the role of internal interactions and nonlinearities in synchronization.

Findings

Photon intensity jumps to large values at a critical forcing strength.

Synchronization is achieved through nonlinear Hamiltonian terms.

The number of quantum wells influences the transition behavior.

Abstract

We study numerically the photon emission from a semiconductor microcavity containing $N\ge 2$ quantum wells under the influence of a periodic external forcing. The emission is determined by the interplay between external forcing and internal interaction between the wells. While the external forcing synchronizes the periodic motion, the internal interaction destroys it. The nonlinear term of the Hamiltonian supports the synchronization. The numerical results show a jump of the photon intensity to very large values at a certain critical value of the external forcing when the number of quantum wells is not too large. We discuss the dynamics of the system across this transition.