Nano-Science Center > Research > NanoSpectroscopy

The staff members in the NanoSpectroscopy group are experimental spectroscopists who have build up a rich toolbox of spectroscopy methods to characterize both molecules and nano-scale systems. These steady-state, time- and space-resolved tools include: absorption and emission spectroscopy (UV, VIS, NIR, IR), Raman spectroscopy, confocal fluorescence and Raman microscopy, single molecule fluorescence microscopy, time-resolved fluorescence (anisotropy) spectroscopy, femto-second transient absorption spectroscopy, photo-acoustic spectroscopy, cavity-ring down spectroscopy and matrix isolation spectroscopy.

Tom Vosch's lab has a strong background in single molecule fluorescence microscopy and spectroscopy.  We currently have build up single molecule fluorescence detection techniques, fluorescence correlation spectroscopy, micro-Raman spectroscopy and time-correlated single photon counting techniques. These techniques are mainly being used to investigate and develop new applications of small fluorescent silver cluster materials for single molecule detection and high resolution fluorescence microscopy.

Theis Solling's lab addresses real-time structural changes by initiating a given process with one laser pulse (the pump) and measuring the change that in induced by a second femtosecond laser pulse (the probe). Our primary focus is on gas-phase reactions with the employment of an ionizing probe to essentially perform time-resolved mass spectrometry and photoelectron spectroscopy measurements.  The overall focus is to unravel, in real-time, the nuclear motion that that arise from the interaction between light and organic molecules.  Currently the main emphasis is on folding dynamics.

Henrik Grum Kjærgaard's lab investigates molecular reactions of atmospheric and biological interest. We combine laboratory studies with theoretical and computational tools. We link our spectra with structural determination, hydrogen bonds determination, mapping of transition metals in active sites in proteins and hydrated complexes.

Bo Wegge Laursen's lab synthesizse and investigates the photochemistry of new dyes, some of them for applications as molecular sensors. Interactions between dyes in aggregates and self-assembly of molecular nano-structures are also part of the ongoing research. Besides this, we also explore graphene chemistry for the construction of molecular electronics.