Bio- and Nano-Photonics Laboratory
IMTEK – Department of Microsystems Engineering
University of Freiburg
Living cells are fascinating microsystems. Therefore we develop novel techniques for laser optical microscopy and optical force based applications, to investigate the biophysics of living cells and of bio-mimetic systems based on their nano-mechanics and thermal fluctuations.
Nano-mechanics of helical bacteria in optical line traps
Project 1: Spiroplasms – propagation dynamics of the simplest form of life, trapped and scanned in a light tube
Dynamic Particle interactions
Project 1: Interferometric tracking of dynamic particle interactions with scanning line optical tweezers.
Momentum transport through bio-polymer networks
Project 1: We investigate viscoelastic properties of single and multiple microtubules coupled by thermally fluctuating trapped beads as nucleation sites.
Dynamics of MREB filaments inside Bacillus Subtilis
Project 1: With fast SR techniques we investigate cytoskeletal MreB filaments. These move through poorly understood mechanisms underneath the membrane of rod -shaped bacteria and help to organize the cell wall.
Light-sheet microscopy (LSM) with self-reconstructing beams
Project 1: LSM using holographically shaped beams
Project 2: LSM using two photon Bessel beams
Project 3: LSM using Bessel beams and the STED principle
Surface Imaging with optically trapped probes
Project 1: Surface scanning with optically trapped probes in the presence of phase disturbing structures.
Plasmonic coupling of two optically trapped particles