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Research in cooperation with research institutes as well as independent further development are an important basis for permanent optimisation and adjustment of our coating machines.
The participation of Cutting Edge Coatings GmbH to following procects shows exemplarily the research area of our company.
Control of spectral layer properties by optical broad-band spectral analysis in industrial ion beam sputtering processes. The research project is a part of the joint research network „Optical control of highly precise concepts for ion beam sputtering” (OptiKontrol) formed by two German and two Russian research partners.
It was the task for Cutting Edge Coatings to investigate in a novel method for broad-band optical transmittance and reflectance measurements. This method shall provide in-situ information on optical parameters of growing dielectric layers in industrial ion beam sputtering coating processes. Based on an extensive analysis on parametrizing the evaluation and control algorithms, the measurement system was successfully implemented in the control infrastructure of an industrial IBS-coating system. The performance of this measurement system has been evaluated for demanding optical filters. The coating process accompanying characterization of layer properties for monitoring sensitive fabrication tolerances has been successfully demonstrated.
The goal of this project is to develop a compact laser source capable of emitting >60 mW of continuous-wave radiation at 355 nm and with a total power consumption of less than 100W. The laser source will be used in analytical instrumentation technologies in life science and advanced measurement.
An extraction grid design for RF-driven ion sources with collinear grid hole arrangement was elaborated for mitigate contamination in the thin film deposition process. An assistance ion source with optimized extraction was delivered to project partner LZH. A simulation software based on physical model algorithms was developed to investigate in contamination effects of different grid hole geometries.
The development of a collinear grid hole arrangement has been come out as a complete success regarding the initial expectations. By implementing the new developed ion extraction grid system, it was possible to suppress contamination in deposition process below the relevant limit of detection. A demonstration grid system has been integrated into the deliverable to LZH and evaluated concerning the overall performance and its contamination tendency. The project partners confirmed the successful implementation of the optimized system in their production environment. Furthermore, the computer simulation of different hole geometries was successful although the time expenditure was underestimated so that only selected geometries were investigated in simulation.
BINGO - Bonding of optical components
In our latest research projects 2020, CEC is working on bonding arbitrary coated and uncoated substrate materials in the controlled environment of our plant’s vacuum. Bonding means in this context the formation of covalent bonds between the substrates which makes for a mechanically highly robust sample. During this process, no intermediate layer will form on the surfaces of contact, meaning no intermixing of the surface layers. This minimises the negative impact on optical and thermal properties of the sample. Through this process, our plant will not only be able to do high-quality coatings but will also be capable of manufacturing complex optical systems, e.g. high-power laser media, in the near future.