Andreas Tünnermann

TL;DR: In this article, a high-gain diode-pumped ytterbium-doped fiber-amplifier system was proposed for femtosecond seed-laser pulses.

TL;DR: Highly robust fiber Bragg gratings in passive large-mode-area fibers for kilowatt fiber laser systems demonstrate excellent qualification for the implementation into robust high-power fiber laser setups.

TL;DR: A technique for the efficient and flexible generation of aluminum nanorings based on double patterning and variable shaped electron beam lithography is evaluated, the redepositions are quantified, the plasmonic properties are investigated, and a design tool for the very general class of nanofabrication techniques involving the etching of metals is provided.

TL;DR: A diffractive optical element consisting of computer-generated holograms and dielectric multilayer mirrors in a stratified setup enables the far field projection of arbitrary, multicolor images.

TL;DR: In this article, hybrid organic-inorganic alucone films have been deposited using trimethylaluminum and ethylene glycol by molecular layer deposition (MLD), and the stability of the coatings was monitored in ambient as well as in dry air.