Spectroscopy and Imaging

Within the focus of an ultrafast laser linear and nonlinear interaction can be localized to a volume in the µm3 range. This high resolution is usefully employed for imaging e.g. in life sciences. Further combined with spectroscopy, sensing and ranging in the micron scale becomes reality, and methods such as CARS microscopy, OCT, FLIM, or nonlinear microscopy became standard technologies with a billion dollar marked worldwide. Here in our group we are continuously working on innovative concepts and methods for the imaging techniques of the future.
Waveguide Writing

Material processing of dielectric materials benefits from the exploitation of nonlinear absorption using femtosecond laser pulses. Our high repetition rate laser systems with pulse energies in the µJ level [link] enable the processing of many dielectric materials such as glasses and laser crystals. Here the focus is on the creation of laser written photonic waveguides, mainly in fused silica glass.