title: Quantum optical studies on individual acceptor bound excitons in a semiconductor.
abstract: We demonstrate the generation of triggered single photons at a predetermined and well defined energy using the radiative recombination of single nitrogen-bound excitons in a semiconductor. The nitrogen atoms are embedded in a ZnSe quantum well structure and were excited by nonresonant optical pumping (82 MHz) at low temperature (4 K). We find resolution-limited photoluminescence lines (280 micro eV) which display photon antibunching under continuous optical pumping. Our results also suggest that single nitrogen-bound excitons are well suited for cavity quantum electrodynamics experiments.
authors.affiliation: Institute of Solid State Physics, Semiconductor Optics, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Strauf
authors.forename: P
authors.initials: P
authors.lastname: Michler
authors.forename: M
authors.initials: M
authors.lastname: Klude
authors.forename: D
authors.initials: D
authors.lastname: Hommel
authors.forename: G
authors.initials: G
authors.lastname: Bacher
authors.forename: A
authors.initials: A
authors.lastname: Forchel