Biomolecules and nanostructures
The Optical Sciences group studies the interaction of light and matter at the nanoscale.
We do this by exploring ways to shape light and its environment. It's what we call
active and passive control. Our current focus is on the interaction of light with
biomolecules and nanostructures. We are part of Twente
University's Department of Science and Technology and member of the
HIGH-RESOLUTION IMAGING OF DIELECTRIC SURFACES WITH AN EVANESCENT FIELD OPTICAL MICROSCOPE(full pdf)
VANHULST NF, SEGERINK FB, BOLGER B
vol 87 issue 5-6: p212-p218 FEB 15 1992
An evanescent field optical microscope (EFOM) is presented which employs frustrated total internal reflection on a localized scale by scanning a dielectric tip in close proximity to a sample surface. High resolution images of dielectric gratings and spheres containing both topographic and dielectric information have been obtained. The resolution obtained is 30 nm in the lateral directions and 0.1 nm in height depending on proper tip fabrication.