title: The depolarization near-field scanning optical microscope: comparison of experiment and theory.
abstract: The depolarization near-field scanning optical microscope allows for sub-wavelength optical resolution with uncoated optical fibre tips. We show by a simple thought experiment, by numerical solution of the Maxwell equations for a realistic geometry, and by direct experiments, that this novel apparatus images gradients of the dielectric function of a sample in the direction of the incident electric field vector. The near-field images obtained from experiment and theory agree well.
authors.affiliation: Institut für Angewandte Physik, Karlsruhe, Germany. georg.freymann@physik.uni-karlsruhe.de
authors.forename: G
authors.initials: G
authors.lastname: von Freymann
authors.forename: C
authors.initials: C
authors.lastname: Adelmann
authors.forename: G
authors.initials: G
authors.lastname: Scheiber
authors.forename: T
authors.initials: T
authors.lastname: Schimmel
authors.forename: M
authors.initials: M
authors.lastname: Wegener