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Cluster Report Photonics in the Capital Region Berlin-Brandenburg

  • Text
  • Imaging
  • Photonics
  • Berlin
  • Optical
  • Laser
  • Technologies
  • Optics
  • Microsystems
  • Components
  • Brandenburg

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60 Cluster Report Optics and Photonics – Optical Analytics Industrial Image Processing Industrial image processing is used in almost every application imaginable. Today it is impossible to conceive of all sorts of production processes, as well as many testing and service areas, without it. The applications are correspondingly wide, ranging from agriculture to mechanical engineering, from the pharmaceutical industry to aerospace, to name but a few. Industrial image processing is a cornerstone of Industry 4.0, but there are also many prospects for research: the possibilities range from automated microscopic examination to the automatic acquisition and evaluation of aerial images. Industrial image processing technology is used to handle a wide range of tasks, including lighting, sensors, data transmission, and data processing. This Report reveals close ties to such topics as lighting and colorimetry (chapter 2.2 “Lighting Technology”), sensor technology (chapter 2.6 “Microelectronics and Microsystems Technology”), but also to transmission technologies (chapter 2.3 “Photonics and Quantum Technology for Communications and Sensors”) and to various sensor topics described here. The main area of business for Bi-Ber GmbH & Co. Engineering KG is the development and manufacture of image processing systems for quality control during production. The focus is on the development, construction, and commissioning of turnkey optical measuring and testing systems, especially for the printing, automotive parts, medical technology, and electronics industries. Standard solutions are also supplied for quality assurance in the confectionery industry, e.g. image processing systems to ensure candy moulds are empty, 3D inspections of broken moulds, and final product inspections. www.bilderkennung.de ISRA Vision Graphikon GmbH is based in Berlin-Adlershof. The company was integrated into ISRA Vision AG in 2010 to take advantage of growth opportunities in the solar market. Today, ISRA Vision AG in Darmstadt is one of the world’s leading companies in the machine vision sector. Among its most important applications are robot vision, surface vision, and quality inspection. Camera on axis in front of a printing web © Bi-Ber GmbH & Co. Engineering KG www.isravision.com A relatively new company is 5micron GmbH. The current portfolio of 5micron GmbH is divided into two segments: surface measurement technology and special lighting systems. In the field of surface measurement, the company is developing projects based on optical methods primarily for the aerospace industry. The methods with resolutions in the micrometre range include deflectometry, the shadow-casting method, and pattern projection. The company’s work in special lighting systems concentrates on data transmission by light. www.5micron.de The company OEG GmbH develops and manufactures measuring systems for optical, geometrical, and physical parameters, for exampel for the measurement of effective focal length, back focal length, centering, MTF, MTF of image intensifier tubes, small angles (prism angle, deflection angle). Moreover, the company supplies optical instruments like collimators and autocollimators. The scope of supply covers the complete manufacturing process from the development to the principle, the mechanical construction and manufacturing, development of software and electronics, the assembly and on-site installation. The measuring systems are usually software controlled and based on image processing for data acquisition. Beside the measuring systems for optical parameters OEG GmbH produces special oprical measuring systems for drawing tools, contact angle

Cluster Report Optics and Photonics – Optical Analytics 61 meters for the seniconductor industry with wafer robot, car windshield scanners, and precision wafer scribers www.oeggmbh.com THz Waves create completely New Insights In the electromagnetic spectrum, the terahertz (THz) regime lies in the hard-to-reach range between the wavelengths of infrared radiation and radio wavelengths (frequencies approx. 0.1 THz to 10 THz, wavelengths approx. 30 µm to 3 mm). This results in different approaches to beam generation. The fully electronic systems based on the multiplication of millimetre wave radiation sources typically reach frequencies of up to 1.4 THz, and even 2.5 THz in exceptional cases. The Ferdinand-Braun-Institut, Leibniz-Institut fuer Hoechstfrequenztechnik (FBH) in Berlin and IHP – Innovations for High Performance Microelectronics in Frankfurt (Oder) are developing the components for such radiation sources. In optoelectronic systems, THz radiation is generated by mixing the frequency of two infrared lasers. Depending on the technical realisation, frequencies can be as high as 2.5 THz or, if a pulsed laser is used, even 10 THz. spectroscopy. One example is the unique quantum cascade laser system developed by DLR and PDI for high-resolution spectroscopy with the SOFIA astronomy aircraft, which has been providing unique data about our universe since 2014. THz radiation can permeate materials such as paper, plastics, or textiles, while metals or water are largely resistant. As a result, THz radiation can be used to illuminate objects, but without the harmful properties of X-rays. This results in interesting applications in inline sensor technology, analytics, non-destructive material testing, and imaging. A new field of research is communication by means of THz radiation. The technology is seeing its first applications in industrial settings. In gas analysis, THz measurements allow highly sensitive and highly specific analyses of gas mixtures, a task which previously required low-temperature turbo bolometers. Non-contact layer thickness measurement on plastic components, foams, and multilayer coatings has only been made possible with THz technologies. THz near-field microscopy allows high-resolution material analyses for the semiconductor industry. The Federal Institute for Materials Research and Testing Bundesanstalt für Materialforschung und –prüfung (BAM) and the Physikalisch-Technische Bundesanstalt (PTB), both in Berlin, are active in the field of non-destructive testing with THz radiation, providing a oneof-a-kind calibration service for THz detectors. In addition, the capital region is very well positioned to conduct theoretical research with THz radiation. These include Berlin’s universities, the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, and Helmholtz-Zentrum Berlin. In a national and international comparison, the Berlin Brandenburg region has a unique bundling of competencies in theoretical and applied THz research and development. THz-quantum cascade laser from GaAs/(Al,Ga)As © PDI In Berlin, the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute HHI is a pioneer in this field. For some years now, a special type of laser, the quantum cascade laser, has increasingly come into use. This makes laser spectroscopy methods in the THz range applicable for the first time. The Paul-Drude-Institut für Festkörperelektronik (PDI) in Berlin is one of the world’s leading developers and manufacturers of these lasers and the German Aerospace Center (DLR) Institute of Optical Sensor Systems in Berlin is a global leader in the application of these lasers for Many approaches for developing THz sources, components, and systems Transferring THz technology into new fields of practical and commercial use requires the development of the necessary components and systems as well as powerful measurement methods. The research institutions in Berlin and Brandenburg are active in many areas. The FBH is currently expanding its THz activities systematically, with a focus on fully electronic components in frequency ranges up to 0.5 THz. This based on a transferred substrate process with indium phosphide hetero-bipolar transistors for the manufacture of integrated circuits. This is complemented by a measuring station for on-wafer measurement of up to 0.5 THz and the associated design activities.

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