Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Annika Richmann"'
Autor:
Patrick Schmitz, Sebastian Heidrich, Reinhart Poprawe, Konrad Wissenbach, Edgar Willenborg, Annika Richmann, Peter Loosen
Publikováno v:
Optics and Lasers in Engineering. 59:34-40
Current results of the development of a process chain for optics manufacturing with laser radiation are presented. The process chain consists of three process steps: High Speed Laser Ablation creates the surface geometry by material ablation, Laser P
Autor:
Annika Richmann
Publikováno v:
Laser Technik Journal. 10:38-41
Das Laser MicroJet-Schneiden (LMJ) wird bereits in vielen industriellen Anwendungen zum Schneiden von Diamant, Halbleiter und Metallen eingesetzt. Vorteile des LMJs gegenuber anderen Technologien sind hohe Kantenqualitat, keine Warmeeinflusszone, gro
Publikováno v:
Physics Procedia. 12:519-528
The current state of the development of a laser based process chain for manufacturing fused silica optics is presented. In a first step fused silica is ablated with laser radiation to produce the geometry of the optics. A subsequent polishing step re
Publikováno v:
International Congress on Applications of Lasers & Electro-Optics.
The Laser Microjet© is a world-wide patented technology which uses ns-laser pulses which is guided to the work piece in a water jet. The sample is therefore cooled by the water and thermal damage during cutting is reduced which is relevant for metal
Autor:
Bernold Richerzhagen, Annika Richmann
Publikováno v:
International Congress on Applications of Lasers & Electro-Optics.
Common cutting technologies for micro-machining are Electrical discharge machining (EDM), water jet cutting, dry ps-pulsed and fs-pulsed laser cutting. A newer technology for micro-machining so far is the Laser Microjet© technology which uses a ns-p
Publikováno v:
SPIE Proceedings.
Increasing laser beam qualities make thermal lensing again a hot topic and demand for a thermo-optical simulation for improving classical ray tracing and enabling optimization possibilities for thermally aberrated optical systems. This paper summariz
Publikováno v:
SPIE Proceedings.
The current state of the development of a laser based process chain for manufacturing fused silica optics is presented. In a first step fused silica is ablated with laser radiation to produce the geometry of the optics. A subsequent polishing step re
Autor:
J. Provine, S. Meyers, Andy Ma, Uwe Dietze, Matt House, Jenah Harris-Jones, S. V. Babu, Paul Dumas, Takashi Yatsui, Motoichi Ohtsu, T. Kusumoto, A. John Kadaksham, Ranganath Teki, Richard Jenkins, A. Hariprasad, J. Stowers, Annika Richmann, Frank Goodwin
Publikováno v:
SPIE Proceedings.
The majority of extreme ultraviolet (EUV) lithography mask blank defects originate from chemical mechanical polishing (CMP) of the substrate. The fact that CMP has not yet been able to yield EUV substrates with low defect counts highlights the challe
Publikováno v:
Imaging and Applied Optics Technical Papers.
A novel process for polishing lenses made of fused silica and BK7 with CO2-laser radiation is presented. First results on polishing spherical and aspherical lenses of both materials with an adapted processing strategy are presented.
Publikováno v:
International Optical Design Conference and Optical Fabrication and Testing.
Polishing results of polishing fused silica with CO2-laser radiation with processing rates up to 1 cm²/s are presented. The roughness of planar surfaces is reduced to Ra