Optical Sciences

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 MESA+ institute.
We participate in the EU-COST actions MP1102: Coherent Raman microscopy (MicroCor) and CM1202: Supramolecular photocatalytic water splitting (PERSPECT-H2O)

 

A THEORETICAL COMPARISON BETWEEN INTERFEROMETRIC AND OPTICAL BEAM DEFLECTION TECHNIQUE FOR THE MEASUREMENT OF CANTILEVER DISPLACEMENT IN AFM

(full pdf)

PUTMAN CAJ, DEGROOTH BG, VANHULST NF, GREVE J
ULTRAMICROSCOPY
vol 42: p1509-p1513 part B JUL 1992

A shot-noise- and diffraction-limited Michelson interferometer and two optical beam deflection configurations are compared for application in an atomic force microscope. The results show that under optimal conditions the optical beam deflection method is just as sensitive as the interferometer. This remarkable result is explained by indicating the physical equivalence of both methods.
Printable version