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
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
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.