Dines Nøddegaard Erschens

Silicon dioxide dry etching by a consumable solid source and He plasma

Marc Bernet, Kristian Buchwald, Dines Nøddegaard Erschens, Jörg Hübner et autres

The semiconductor and photonics industries rely heavily on gases, such as fluorocarbons, hydrofluorocarbons, perfluorinated compounds, and chlorofluorocarbons, for plasma-based processing. However, those gases have a high global warming potential. In the context of increasing sustainability demands and regulatory constraints, alternative etching approaches …

dk (code pays fourni par la source)

Optimized Optical Rectification and Electro-optic Sampling in ZnTe Crystals with Chirped Femtosecond Laser Pulses

Dines Nøddegaard Erschens, Dmitry Turchinovich, Peter Uhd Jepsen

dk (code pays fourni par la source)

Nonlinear generation and detection of THz pulses in ZnTe with chirped femtosecond laser pulses

Dines Nøddegaard Erschens, Dmitry Turchinovich, Peter Uhd Jepsen

We show measurements and simulations of difference-frequency generation of THz pulses and subsequent free-space electro-optic sampling with prechirped femtosecond pulses in ZnTe. Negative prechirping enhances the efficiency due to compression of the laser pulse in the dispersive nonlinear crystal.

dk (code pays fourni par la source)

Mode profiling of optical fibers at high laser powers

P. C. Nielsen, David Bue Pedersen, R. B. Simonsen, Dines Nøddegaard Erschens et autres

This paper describes the development of a measuring equipment capable of analysing the beam profile at high optical powers emitted by delivery fibers used in manufacturing processes. Together with the optical delivery system, the output beam quality from the delivery fiber and …

dk (code pays fourni par la source)