Laserlithografiegerät
Final Report Abstract
During the last three years the nanoscibe Direct Laser Writing (DLW) has been used by the groups of Martin Bastmeyer and Martin Wegener to fabricate scaffolds for cell studies. Here, one goal is to find new resists for getting a broad range of mechanical and chemical properties of the scaffolds. Another part of the work with the DLW is the design and production of scaffolds used in cell biology to investigate the behaviour of cells in three dimensional environments i.e. for mobility studies of cancer cells and cell force studies on fibroblasts and cardiomyocytes. The Wegener group in collaboration with the Bastmeyer group aims at fabricating three-dimensional scaffolds for studying the behavior of beating cardiomyocytes upon external mechanical (periodic) stimulus. Furthermore, by using special periodic compartments with mechanically flexible walls (that exclude chemical interaction pathways), the mechanical interaction of different cardiomyocytes is investigated. These studies are ongoing. Direct laser writing was used in the group of Heinz Kalt for the fabrication of polymer optical micro resonators. The principle of these micro resonators is based on optical whispering galleries and they can be used as passive resonators or as active laser emitters for the detection of bio-molecules. Here, direct laser writing allows the fabrication of high-Q resonators with large flexibility in resonator geometry. Christian Koos’ group is aiming at fabricating three-dimensional interconnect waveguides between nano-photonic chips. The fabrication of these so-called photonic wire bonds is based on direct-write three-dimensional laser lithography with two-photon polymerization (TPP). Photonic wire bonding has the potential to enable novel nano-photonic multi-chip systems, thereby challenging the current paradigm of monolithic photonic integration. A first experimental proof-of principle has been achieved; further studies are ongoing.
Publications
- Elastic fully threedimensional microstructure scaffolds for cell force measurements. Advanved Materials 22, 868 (2010)
F. Klein, T. Striebel, J. Fischer, Z. Jiang, C.M. Franz, G. von Freymann, M. Wegener, and M. Bastmeyer
- Direct laser writing for active and passive high-Q polymer microdisks on silicon. Opt. Express 19, 11451 (2011)
T.Grossmann, S.Schleede, M.Hauser, T.Beck, M.Thiel, G.v.Freymann, T.Mappes, H.Kalt
- Photonic Waveguide Bonds – A Novel Concept for Chip-to-Chip Interconnects Optical Fiber Communication Conference (2011)
Lindenmann, N.; Kaiser, I.; Balthasar, G.; Bonk, R.; Hillerkuss, D.; Freude, W.; Leuthold, J.; Koos, C.
- Photonic wire bonding for single-mode chiptochip interconnects. IEEE 8th Intern. Conf. Group IV Photonics (2011)
Lindenmann, N.; Balthasar, G.; Palmer, R.; Schuele, S.; Leuthold, J.; Freude, W.; Koos, C.
- Two Component Polymer Scaffolds for Controlled Three Dimensional Cell Culture. Advanced Materials 23, 1341-1345 (2011)
Klein, F., Richter, B., Striebel, T., Franz, C.M., von Freymann, G., Wegener, M., Bastmeyer, M.
- Low-Loss Photonic Wire Bond Interconnects Enabling 5 TBit/s Data Transmission Optical Fiber. Communication Conference (2012)
Lindenmann., N.; Kaiser, I.; Balthasar G.; Jordan, M.; Hillerkuss D.; Schmogrow, R.; Freude W.; Leuthold, J.; Koos, C.
