THz Superradiance from a GaAs: ErAs Quantum Dot Array at Room Temperature

TL;DR

This paper demonstrates room-temperature terahertz superradiance from a GaAs: ErAs quantum dot array excited by pulsed light, showcasing cooperative emission phenomena in a semiconductor nanostructure.

Contribution

It provides the first experimental evidence of terahertz superradiance from a quantum dot array at room temperature.

Findings

Observation of cooperative spontaneous emission in the terahertz range.

Room-temperature superradiance achieved in a semiconductor quantum dot array.

Potential applications in terahertz photonics and quantum technologies.

Abstract

We report experimental evidence that an ErAs quantum-dot array in a GaAs matrix under 1550 nm pulsed excitation produces cooperative spontaneous emission-Dicke superradiance-in the terahertz frequency region at room temperature.