Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.

 

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.
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