RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Superfluorescence from dense electron-hole plasmas in high magnetic fields

TitleSuperfluorescence from dense electron-hole plasmas in high magnetic fields
Publication TypeJournal Article
Year of Publication2006
AuthorsA. A. Belyanin, Y. D. Jho, X. Wang, J. Kono, D. H. Reitze, X. Wei, and G. S. Solomon
JournalJ. Phys.: Conf. Ser.
Volume51
Pagination403–406
Date Publishednov
ISSN1742-6588
Keywords2006, Single Fellow
Abstract

Cooperative spontaneous recombination (superfluorescence) of electron-hole plasmas in semiconductors has been a challenge to observe due to ultrafast decoherence. We argue that superfluorescence can be achieved in quantum-confined semiconductor systems and present experimental evidence for superfluorescence from high-density photoexcited electronhole plasmas in magnetized quantum wells. At a critical magnetic field strength and excitation fluence, we observe a clear transition in the band-edge photoluminescence from omnidirectional output to a randomly directed but highly collimated beam. Changes in the linewidth, carrier density, and magnetic field scaling of the emission spectra correlate precisely with the onset of random directionality and are consistent with cooperative recombination.

URLhttp://stacks.iop.org/1742-6596/51/i=1/a=093

Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to jqi-comm@umd.edu