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)

 

Probing the origin of fluorescence quenching of a graphene-porphyrin hybrid material

(full pdf)

Divya Sharma, Xiaoyan Zhang, Ben L. Feringa, Wesley R. Browne, Jennifer L. Herek, and Annemarie Huijser
EPJ Web of Conferences
vol. 41 p. 04027 march 13, 2013
doi:10.1051/epjconf/20134104027

We report transient absorption spectroscopic studies on the hybrid material composed of porphyrin molecules covalently attached to graphene for investigating the mechanism underlying the reported fluorescence quenching of porphyrin in the hybrid [1]. Excited state dynamics of pure graphene suspension and porphyrin have also been studied as reference samples. A fast excited state decay was observed in the hybrid.
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