Objective
- Research objectives: The purpose of given project is the research of thermal effects in microobjects under the action of radiation and the application of these effects in the devices for measurements of laser beam parameters. Besides the investigation of physical processes our main aim is to develop spatially resolving laser power detectors with much larger apertures than existing systems. For this purpose we will develop a new technique of power sensors based on heating of thin wires due to the absorption of radiation. The sensors will be manufactured at much lower prices than competing systems. The sensors will developed for use in laser processing industry. Our target parameters for the sensors are wavelength range 0.2-12 microns, aperture at least 50 mm, spatial resolution down to a few 10 micron, linearity of better than 1%. The sensor will be able to measure the polarization state of the laser radiation without the need of expensive crystals. The absolute calibration of the sensor will be possible without the need of radiation. - Research activities: In order to reach the objectives the research activities consists of 3 parts. 1. Investigations of thermal processes in thin metal wire by its interaction with laser radiation of different wavelength and pulse duration (from 100 fs to cw radiation). We will perform both practical measurements and theoretical calculations. Furtheron we will investigate: (1) The role of the pulsed-laser multiple action in the change of the surface microgeometry of the wire in order to find operational limits of microwires with regard to the laser beam intensity and ambient gas medium. (2) Influence of defects generated in the skin-layer on the change of the surface absorptivity. (3) The influence of the ambient gas medium 2. The solution of inverse problems by handling of receiver signal. In order to apply the results to the sensor the consortium has to solve the inverse problem which is required to determine the distribution of radiation from the resistor changes of the individual wires. We will use the knowledge generated in tomography. 3. The development and characterization of measuring devices consisting on (1) development of a technique to manufacture the microwire grids; (2) development of mechanics; (3) development of read-out devices, the data-transfer to a PC and the software for calculation and visualization of the beam properties; (4) Testing and calibration of the developed devices - Expected results: Major expected result is the promising technology of measuring of laser radiation parameters by cheap devices. The technology developed will be applied in plants, which use powerful technological lasers for cutting, welding and surface treatment of metals. Besides that application the results will be of interest in base research, e.g. micro processing.
Fields of science (EuroSciVoc)
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
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Coordinator
D-53179 Bonn
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.