H. D. Hoffmann

400W Yb:YAG innoslab fs-amplifier (2009)

Russbueldt, P., Mans, T., Rotarius, G., Weitenberg, J., Hoffmann, H.D., Poprawe, R.

The Innoslab design, already established for neodymium doped laser crystals, was applied to ytterbium doped laser materials. Recent progresses in brightness of high power diode lasers facilitate...

Optische Verstaerkeranordnung (2005)

Schnitzler, C., Poprawe, R., Hoffmann, H.D., Giesekus, J., Leers, M., Hoefer, M., ...

DE 10327260 A UPAB: 20050217 NOVELTY - At least one of the beam-folding components (2, 2') is constructed for angular sensitivity, i.e. its reflectivity for a given angle of incidence exceeds that...

Chronic pulmonary effects of respirable methylene diphenyl diisocyanate (MDI) aerosol in rats: Combination of findings from two bioassays (2001)

Feron, V.J., Kittel, B., Kuper, C.F., Ernst, H., Rittinghausen, S., Muhle, H., ...

Two independent bioassays are available which have examined the potential carcinogenicity of monomeric and polymeric methylene diphenyl diisocyanate (MDI) following long-term inhalation exposure in...

High speed removal and structuring of surfaces in the automotive industry with a new diode pumped high average power Q-switch solid state laser source (1999)

Stollenwerk, J., Hoffmann, H.D., Ortmann, J., Bonati, G., Schmidt, G., Wissenbach, K., ...

Picosecond laser ablation of thin copper films (1996)

Jandeleit, J., Urbasch, G., Hoffmann, H.D., Kreutz, E.W., Treusch, H.G.

The ablation process of thin copper films on fused silica by picosecond laser pulses is investigated. The ablation area is characterized using optical and scanning electron microscopy. The...

Energiedissipation bei der Wechselwirkung ultrakurzer Laserimpulse mit Festkörpern (1996)

Jandeleit, J., Urbasch, G., Hoffmann, H.D., Kreutz, E.W., Treusch, H.G.

Untersucht werden die Wechselwirkungsrnechanismen ultrakurzer Laserpulse mit Metallen, Halbleitern und Dielektrika im Bereich oberhalb der Schwellenergiedichte für den Materialabtrag. Verwendet wird...