title: Optical modes in oxide-apertured micropillar cavities.
abstract: We present a detailed experimental characterization of the spectral and spatial structure of the confined optical modes for oxide-apertured micropillar cavities, showing good-quality Hermite-Gaussian profiles, easily mode-matched to external fields. We further derive a relation between the frequency splitting of the transverse modes and the expected Purcell factor. Finally, we describe a technique to retrieve the profile of the confining refractive index distribution from the spatial profiles of the modes.
authors.affiliation: Huygens Laboratory, Leiden University, P.O. Box 9504, RA Leiden 2300, The Netherlands. c.bonato@tudelft.nl
authors.forename: Cristian
authors.initials: C
authors.lastname: Bonato
authors.forename: Jan
authors.initials: J
authors.lastname: Gudat
authors.forename: Keesjan
authors.initials: K
authors.lastname: de Vries
authors.forename: Susanna M
authors.initials: SM
authors.lastname: Thon
authors.forename: Hyochul
authors.initials: H
authors.lastname: Kim
authors.forename: Pierre M
authors.initials: PM
authors.lastname: Petroff
authors.forename: Martin P
authors.initials: MP
authors.lastname: van Exter
authors.forename: Dirk
authors.initials: D
authors.lastname: Bouwmeester