Cooperative Recombination of a Quantized High-Density Electron-Hole Plasma in Semiconductor Quantum Wells
Cooperative Recombination of a Quantized High-Density Electron-Hole Plasma in Semiconductor Quantum Wells
We investigate photoluminescence from a high-density electron-hole plasma in semiconductor quantum wells created via intense femtosecond excitation in a strong perpendicular magnetic field, a fully quantized and tunable system. At a critical magnetic field strength and excitation fluence, we observe a clear transition in the band-edge photoluminescence from omnidirectional output …