title: Colloidal quantum dots in all-dielectric high-Q pillar microcavities.
abstract: We have fabricated all-dielectric high-Q optical pillar resonators with embedded colloidal CdSe/ZnS quantum dots or rods as light emitters by focused ion beam milling. Three-dimensional light confinement and distinct pillar microcavity modes are observed. Results from a waveguide model for the mode patterns and their spectral positions are in excellent agreement with the experimental data. Cavities with elliptical cross sections show higher quality factors in the short axis direction than do circular resonators of the same cross-sectional area.
authors.affiliation: Department of Physics and Center for Applied Photonics, University of Konstanz, D-78464 Konstanz, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Kahl
authors.forename: Tim
authors.initials: T
authors.lastname: Thomay
authors.forename: Verena
authors.initials: V
authors.lastname: Kohnle
authors.forename: Katja
authors.initials: K
authors.lastname: Beha
authors.forename: Jörg
authors.initials: J
authors.lastname: Merlein
authors.forename: Matthias
authors.initials: M
authors.lastname: Hagner
authors.forename: Andreas
authors.initials: A
authors.lastname: Halm
authors.forename: Jan
authors.initials: J
authors.lastname: Ziegler
authors.forename: Thomas
authors.initials: T
authors.lastname: Nann
authors.forename: Yuri
authors.initials: Y
authors.lastname: Fedutik
authors.forename: Ulrike
authors.initials: U
authors.lastname: Woggon
authors.forename: Mikhail
authors.initials: M
authors.lastname: Artemyev
authors.forename: Fabian
authors.initials: F
authors.lastname: Pérez-Willard
authors.forename: Alfred
authors.initials: A
authors.lastname: Leitenstorfer
authors.forename: Rudolf
authors.initials: R
authors.lastname: Bratschitsch
mesh_terms: D003102:Colloids / Q000737:chemistry*; D008422:Materials Testing; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D045663:Quantum Dots
chemical_list: D003102:Colloids