Now showing items 1-4 of 4
Superfluorescence from photoexcited semiconductor quantum wells: Magnetic field, temperature, and excitation power dependence
(American Physical Society, 2015)
Superfluorescence (SF) is a many-body process in which a macroscopic polarization spontaneously builds up from an initially incoherent ensemble of excited dipoles and then cooperatively decays, producing a delayed pulse ...
Dicke superradiance in solids [Invited]
(The Optical Society, 2016)
Recent advances in optical studies of condensed matter systems have led to the emergence of a variety of phenomena that have conventionally been studied in the realm of quantum optics. These studies have not only deepened ...
Stability of High-Density Two-Dimensional Excitons against a Mott Transition in High Magnetic Fields Probed by Coherent Terahertz Spectroscopy
(American Physical Society, 2016)
We have performed time-resolved terahertz absorption measurements on photoexcited electron-hole pairs in undoped GaAs quantum wells in magnetic fields. We probed both unbound- and bound-carrier responses via cyclotron ...
Superradiant Decay of Cyclotron Resonance of Two-Dimensional Electron Gases
(American Physical Society, 2014)
We report on the observation of collective radiative decay, or superradiance, of cyclotron resonance (CR) in high-mobility two-dimensional electron gases in GaAs quantum wells using time-domain terahertz magnetospectroscopy. ...