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)

 

NEAR-FIELD OPTICAL MICROSCOPE USING A SILICON-NITRIDE PROBE

(full pdf)

VANHULST NF, MOERS MHP, NOORDMAN OFJ, TACK RG, SEGERINK FB, BOLGER B
APPLIED PHYSICS LETTERS
vol 62 issue 5: p461-p463 FEB 1 1993

Operation of an alternative near-field optical microscope is presented. The microscope uses a microfabricated silicon- nitride probe with integrated cantilever, as originally developed for force microscopy. The cantilever allows routine close contact near-field imaging o­n arbitrary surfaces without tip destruction. The effect of adhesion forces o­n the coupling to the evanescent wave has been observed. Images with a lateral resolution of about 50 nm are presented and compared with atomic force images. A specific sample area can be selected using an integrated conventional light microscope.
Printable version