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)


Epi-detection of vibrational phase contrast coherent anti-Stokes Raman scattering

(full pdf)

Erik T. Garbacik, Jeroen P. Korterik, Cees Otto, Jennifer L. Herek, and Herman L. Offerhaus
Optics Letters
Vol. 39, Issue 20, pp. 5814-5817 oct 15 2014

We demonstrate a system for the phase-resolved epi-detection of coherent anti-Stokes Raman scattering (CARS)signals in highly scattering and/or thick samples. With this setup, we measure the complex vibrational responses of multiple components in a thick, highly-scattering pharmaceutical tablet in real time and verify that the epi- and forward-detected information are in very good agreement. © 2014 Optical Society of America
Printable version