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All publications from Fraunhofer-Institut für Lasertechnik ILT

»Dass wir all diese Schritte im Haus abbilden können, ist ein großer Vorteil für unsere Partner. Sie bekommen nicht nur einzelne Prozessschritte, sondern eine komplette, ganzheitliche Lösung«, erklärt Dr. Edgar Willenborg. © Fraunhofer ILT, Aachen /

Am Fraunhofer ILT entsteht eine neue Generation optischer Bauteile – schneller gefertigt, präzise geformt und exakt auf den Einsatz abgestimmt. © Fraunhofer ILT, Aachen / A new generation of optical components is being developed at Fraunhofer ILT – faster to manufacture, precisely shaped and exactly matched to the application. © Fraunhofer ILT, Aachen, Germany

Vom Design über die Veredelung bis zur Montage, vom Entwurf bis zur Endkontrolle: Die neue Laserprozesskette für Optiken am Fraunhofer ILT in Aachen. © Fraunhofer ILT, Aachen

From design to finishing to assembly, from draft to final inspection: the new laser process chain for optics at Fraunhofer ILT in Aachen. © Fraunhofer ILT, Aachen, Germany

17.05.2025
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Know How, Institut

This is how the optics of the future are created – from glass to final assembly

Whether in medical technology, quantum technology or semiconductor production, optical systems are an integral part of many high-tech applications. To ensure that lenses, mirrors and other components meet the highest requirements, manufacturing needs processes that combine precision, efficiency and…

12 von 24 Teilstrahlen im Einsatz: Die Optik von Pulsar Photonics strukturiert das 300 mm breite Band der Batterieanode und verbessert so Leistungsdichte und Ladefähigkeit. © Pulsar Photonics GmbH / 12 of the 24 partial beams in use: The optics developed by Pulsar Photonics structures the 300 mm wide band of the battery anode using the individual partial beams. This significantly improves power density and charging capacity. © Pulsar Photonics GmbH

Der Hochleistungsdiodenlaser aus dem IDEEL Forschungsprojekt macht die Serienproduktion von Lithium-Ionen-Batterien durch das Rolle-zu-Rolle Verfahren deutlich nachhaltiger und wirtschaftlicher. © Fraunhofer ILT, Aachen / The high-power diode laser from the IDEEL research project makes the series production of lithium-ion batteries significantly more sustainable and economical thanks to the roll-to-roll process. © Fraunhofer ILT, Aachen, Germany

Aurora Powertrains ließ am Fraunhofer ILT ein maßgeschneidertes Laserschweißsystem für seine modulare, skalierbare Schneemobil-Batterie entwickeln. Die wasser- und staubdichte Batterie mit IP67-Klassifizierung hat eine Energiedichte von mehr als 190 Wh/kg. © Aurora Powertrains / Aurora Powertrains commissioned Fraunhofer ILT to develop a customized laser welding system for its modular, scalable snowmobile battery. The waterproof and dustproof battery with IP67 classification has an energy density of more than 190 Wh/kg. © Aurora Powertrains

Laserstrahlschweißen von Batteriezellen mit blauem Laser. © Fraunhofer ILT, Aachen / Laser welding of battery cells with a blue laser. © Fraunhofer ILT, Aachen, Germany

Der PKW Querlenker mit aufgedrucktem Kraftsensor liefert zu jedem beliebigen Zeitpunkt die im Einsatz wirkenden Kräfte und registriert kleinste Risse, die auftreten, bevor ein Defekt entsteht. © Fraunhofer ILT, Aachen / A car control arm with imprinted force sensor measures the forces acting during use at any time and registers the smallest cracks that occur before a defect develops. © Fraunhofer ILT, Aachen

Auf den Wafer lassen sich durch Inkjet-Druck technische Strukturen und beliebige Geometrien auftragen. Danach werden die Lautsprecherelemente vereinzelt und in eine elektronische Umgebung eingebunden. © Fraunhofer ILT, Aachen / Technical structures and any geometrical shape can be applied to the wafer using inkjet printing, while functionalization is carried out using laser radiation. The individual loudspeaker elements are then separated and integrated into an electronic environment. © Fraunhofer ILT, Aachen, Germany

Berührungsloses Freilegen und Entlöten von Platinen-Bauelementen mittels Laserstrahlung in einem Recyclingprozess des »ADIR«-Projekts. © Fraunhofer ILT, Aachen / Non-contact exposure and desoldering of circuit board components using laser radiation in a recycling process of the

Mit Laser und KI zur nachhaltigen Batterieproduktion: Kosteneffizient und zuverlässig in der Fertigung. © Fraunhofer ILT, Aachen

Using lasers and AI for sustainable battery production: cost-efficient and reliable production. © Fraunhofer ILT, Aachen, Germany

03.05.2025
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Electronics (wafers, semiconductors, microchips,...)

From raw material processing to recycling: new approaches in battery production

Battery production is at the heart of industrial and climate policy worldwide. Indeed, the demand for energy storage systems for electromobility and stationary applications is growing globally as is the importance of efficient, sustainable and regionally independent battery production.

In particular…

Die Luft- und Raumfahrt gehört zu den Profiteuren der aktuellen Entwicklung im metallischen 3D-Druck. Kleine Stückzahlen und hohe Komplexität leichter, leistungsfähiger Komponenten gehören schon heute zu den Stärken der Additiven Fertigung. © Fraunhofer ILT, Aachen / Dr. Tim Lantzsch and Dr. Stefan Leuders agree: The aerospace industry is one of the beneficiaries of current developments in metallic 3D printing. Small quantities and the high complexity of lightweight, high-performance components are already among the strengths of Additive Manufacturing. © Fraunhofer ILT, Aachen, Germany

Dr. Stefan Leuders betont die Nachhaltigkeitspotenziale von AM, insbesondere durch die Reparatur und Wiederaufbereitung von Werkzeugen und Bauteilen, was für eine zukünftige Kreislaufwirtschaft ein entscheidender Aspekt ist. © voestalpine / Dr. Stefan Leuders emphasizes the potential AM has to improve sustainability, particularly through the repair and reconditioning of tools and components. The ability to repair and recondition components and tools is a crucial aspect of a future circular economy. © voestalpine

Dr. Tim Lantzsch (links) vom Fraunhofer ILT und Dr. Stefan Leuders (rechts) von voestalpine diskutieren über die aktuellen Trends im metallischen 3D-Druck, die das Potenzial haben, die industrielle Produktion nachhaltig zu verändern. © Fraunhofer ILT, Aachen / Dr. Tim Lantzsch (left) from Fraunhofer ILT and Dr. Stefan Leuders (right) from voestalpine discuss the current trends in metallic 3D printing, which have the potential to change industrial production in the long term. © Fraunhofer ILT, Aachen, Germany

Dr. Tim Lantzsch und Dr. Stefan Leuders besprechen die langfristigen Perspektiven der Additiven Fertigung, einschließlich der Integration in bestehende Produktionsprozesse und der Rolle von AM in der Kreislaufwirtschaft. © Fraunhofer ILT, Aachen / Dr. Tim Lantzsch and Dr. Stefan Leuders discuss the long-term prospects of Additive Manufacturing, including integration into existing production processes and the role of AM in the circular economy. © Fraunhofer ILT, Aachen, Germany

Dr. Tim Lantzsch und Dr. Stefan Leuders erläutern die technologischen Hürden der Additiven Fertigung, insbesondere die Herausforderung, neue Materialien zu entwickeln und die Prozesssicherheit in der Massenproduktion zu gewährleisten. © Fraunhofer ILT, Aachen / Dr. Tim Lantzsch and Dr. Stefan Leuders explain the technological hurdles of Additive Manufacturing, in particular the challenge of developing new materials and ensuring process reliability in mass production. © Fraunhofer ILT, Aachen, Germany

28.10.2024
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3D printing

Additive Manufacturing in the throes of technological change

Additive Manufacturing, particularly metal 3D printing, has evolved from a promising technology to a serious constituent of industrial production. Industries such as plant engineering, aerospace, automotive and metalworking are facing a technological transformation that could have far-reaching impli…

Aktin gefärbter 3T3 Fibroblastensphäroid für den LIFT-Transfer, kultiviert in lasergefertigten Mikronäpfchen. © Fraunhofer ILT, Aachen / Actin-stained 3T3 fibroblast spheroid for LIFT transfer, cultivated in laser-fabricated microwells. © Fraunhofer ILT, Aachen, Germany

Das LIFTOSCOPE vereint Hochgeschwindigkeits-mikroskopie, KI-Analyse und Lokalisation lebender Zellen und Zellverbände mit dem laserinduzierten Vorwärts-Transfer (LIFT). Der Laserstrahl wird über Spiegel direkt in den Strahlengang des Mikroskops eingekoppelt. Anwender können zwischen Kamerabeobachtung und LIFT-Prozess wechseln. © Fraunhofer ILT, Aachen / The LIFTOSCOPE combines high-speed microscopy, AI-based analysis and localization of living cells and cell clusters with laser-induced forward transfer (LIFT). The laser is coupled directly into the beam path of the microscope via mirrors. Users can switch between camera observation and the LIFT process. © Fraunhofer ILT, Aachen, Germany

Das MIR LIFT-Verfahren transferiert lebende Zellen mit hoher Rate von bis zu 100 Hz nacheinander auf Mikrotiterplatten (MTP). Um den hocheffizienten Prozess herstellerunabhängig in Mikroskopie-Plattformen integrieren zu können, hat das Fraunhofer ILT u.a. die abgebildete Halterung für eine 6-Well-MTP entwickelt. © Fraunhofer ILT, Aachen / The MIR LIFT process transfers living cells to microtiter plates (MTP) one after the other at a high rate of up to 100 Hz. In order to integrate the highly efficient process into microscopy platforms regardless of the manufacturer, Fraunhofer ILT has developed, among other things, the holder shown here for a six-well MTP. © Fraunhofer ILT, Aachen, Germany

Forschende des Fraunhofer ILT erproben das LIFTOSCOPE für die KI-gestützte, vollautomatisierte Hochdurchsatzsortierung lebender Zellen mit gepulster Laserstrahlung. © Fraunhofer ILT, Aachen / Researchers at Fraunhofer ILT are testing the LIFTOSCOPE for AI-assisted, fully automated high-throughput sorting of living cells by pulsed laser radiation. © Fraunhofer ILT, Aachen, Germany

13.06.2024
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Lasertechnology

Automated high-throughput sorting of living cells using laser light and AI

Tests on living cell cultures are becoming increasingly important for personalized medicine, drug development and clinical research. The Aachen-based Fraunhofer Institutes for Laser Technology ILT and for Production Technology IPT have developed an AI-assisted high-throughput process that now makes…

Internationales Forscherteam des Lawrence Livermore National Laboratory, des Fraunhofer ILT und der ELI - Extreme Light Infrastructure in der ELI Beamlines Facility, Prag, Tschechische Republik. © ELI ERIC / International team of researchers from Lawrence Livermore National Laboratory, Fraunhofer ILT and ELI - Extreme Light Infrastructure at the ELI Beamlines Facility, Prague, Czech Republic. © ELI ERIC

11.06.2024
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Products, devices, systems, plants for applications

Harnessing Machine Learning for Breakthroughs with High-Power Lasers

A team of international scientists from Lawrence Livermore National Laboratory (LLNL), Fraunhofer Institute for Laser Technology ILT, and the Extreme Light Infrastructure (ELI) collaborated on an experiment to optimise high-intensity high-repetition rate laser technology using machine learning. The…

Im Harzbad gefertigtes Musterbauteil aus der HoPro-3D-Anlage. © Fraunhofer ILT, Aachen. / Sample component produced in a resin bath from the HoPro3D system. © Fraunhofer ILT, Aachen, Germany.

Laboranlage zur Erprobung des Kombinationsprozesses. © Fraunhofer ILT, Aachen. / Laboratory plant for testing the combination process. © Fraunhofer ILT, Aachen, Germany.

Realisierung von MPP- und DLP-Prozess in einem Harzbad. © Fraunhofer ILT, Aachen. / Realization of MPP and DLP process in one resin bath. © Fraunhofer ILT, Aachen, Germany.

07.12.2022
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Science

Combined and efficient: Two steps to the goal

Together with industrial partners, the Fraunhofer Institute for Laser Technology ILT has developed a novel system for producing high-resolution microcomponents by photo-crosslinking. Thanks to their work in the project “High productivity and detail accuracy in additive manufacturing by combining U…

Parallele, kontinuierliche Perfusion von vier Organ-on-Chip Systemen. © Fraunhofer ILT, Aachen / Parallel, continuous perfusion of four organ-on-chip systems. © Fraunhofer ILT, Aachen, Germany

27.05.2022
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Lasertechnology

Process Chains for Isolation and Analysis: from Single Cells to Organoids

Researchers at the Fraunhofer Institute for Laser Technology ILT are working on new tools for the preparation and analysis of single cells and cell assemblies. The team developed the “Liftoscope,” a system for cell sorting for subsequent cultivation that can analyze and transfer biomaterials pre…

Der Greifarm – das zentrale Werkzeug für die hochpräzise Justage der Weltraumkomponenten - besteht aus einem statischen und einem beweglichen Teil. © Fraunhofer ILT, Aachen. / The gripper arm – the central tool for the high-precision alignment of space components – consists of a static and a moving part. © Fraunhofer ILT, Aachen, Germany.

Künstlerische Darstellung des MERLIN Instruments auf Basis der Myriade- Satellitenplattform. © CNES/illustration David DUCROS, 2016. / An artist's impression of the MERLIN instrument based on the Myriad satellite platform. © CNES/illustration David DUCROS, 2016.

17.09.2021
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3D printing

Gripper Arm from the 3D Printer for Assembling Optical Systems with Maximum Precision

The Fraunhofer Institute for Laser Technology ILT in Aachen has been developing and building laser systems for use in space for several years. At the same time, the Aachen scientists are also researching technologies for metallic 3D printing. Using the Laser Powder Bed Fusion (LPBF) process, Fraunho…

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