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)


Large-area two-dimensional silicon photonic crystals for infrared light fabricated with laser interference lithography

(full pdf)

L Prodan, T G Euser, H AGM van Wolferen, C Bostan, R M de Ridder, R Beigang, K-J Boller and L Kuipers
vol 15 issue 5 p639 - 642 may 2004

We report on the production of large-area 2D photonic crystals from high-index material with laser interference lithography (LIL). A new image reversal photoresist is used in combination with an anti-reflection coating to suppress undesired reflections. The photonic crystals possess a cubic pattern of air holes in a 500 nm silicon layer and cover an area of 1 cm2.
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