City:  Aachen
Date:  Mar 22, 2024

Increasing shape accuracy in the laser-based production of customised optics

The Fraunhofer-Gesellschaft (www.fraunhofer.com) currently operates 76 institutes and research institutions throughout Germany and is the world’s leading applied research organization. Around 30 800 employees work with an annual research budget of 3.0 billion euros. 

The conventional production of optics is very time-consuming and costly in terms of shaping and polishing. The urge for inexpensive, individualized components therefore requires new manufacturing technologies. One such approach is the use of laser radiation to ablate the glass layer by layer and then polish it by remelting. The two sub-processes are carried out with ultra-short pulsed or continuous CO2 laser radiation and are each based on the characteristic interaction with transparent materials. The development of the individual processes is already well advanced, but there is a lack of knowledge about combining the processes into a production chain.

 

What you will do

  • Investigation of the combination of laser ablation and laser polishing for the production of complex precision optics, e.g. aspheres and freeforms
  • Consideration of the interaction of the processes on shape fidelity and surface quality 
  • Production of a process strategy for demonstrator optics with defined target geometry and optical surface quality

 

What you bring to the table

  • You are studying physics, mechanical engineering, materials science or a comparable course of study
  • You are motivated and are characterized by an independent and conscientious way of working
  • Knowledge of laser technology is an advantage, but not essential 

 

What you can expect

  • Practice-oriented thesis in an innovative working environment
  • A creative, diverse, multidisciplinary team with in-depth knowledge 
  • Tasks with responsibility and creative freedom
  • Close cooperation between science and industry
  • First-class equipment in the laboratories and offices
  • Good transport links (bus connections, free parking garage)
  • Flexible working hours for a better work-study balance

 

The position is temporary until completion of the thesis.

We value and promote the diversity of our employees' skills and therefore welcome all applications - regardless of age, gender, nationality, ethnic and social origin, religion, ideology, disability, sexual orientation and identity. Severely disabled persons are given preference in the event of equal suitability. 

With its focus on developing key technologies that are vital for the future and enabling the commercial utilization of this work by business and industry, Fraunhofer plays a central role in the innovation process. As a pioneer and catalyst for groundbreaking developments and scientific excellence, Fraunhofer helps shape society now and in the future. 

 

Interested? Apply online now. We look forward to getting to know you!

 

If you have any questions about this position, please contact:

Manuel Jung M. Sc.

0241/8906-669

 

Fraunhofer Institute for Laser Technology ILT 

www.ilt.fraunhofer.de 

 

Requisition Number: 71505                Application Deadline: 05/31/2024

 


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