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Coursebooks
Laser Materials Processing
MSE-662
Lecturer(s) :
Hoffmann PatrikLeinenbach Christian
Wasmer Kilian Thomas
Language:
English
Remarque
Next time: 2019-2020Summary
Provide understanding of the optical properties of materials, principles of laser operation and properties of generated light. Comprehension of basics of interaction between laser light and materials will allow analysis of the physics and chemsitry of laser processes.Content
1) Principles of laser operation, types of lasers
2) Properties of the laser light: light controlled in time and space
3) Optical properties of the materials and their physical origin at atomic level
4) Fundamentals of light-matter interaction: linear/non-linear absorption, refractive index, influence of light properties such as wavelength or pulse length on the process
5) Laser light delivery: imaging, focusing, high resolution patterns ¿ beam quality, resolution limits
6) Principles of laser processing: efficiency, importance of understanding heat flow, serial processing, parallel processing, ¿
7) Applications of laser processing: bending, welding, 3-D printing, multi-photon-processing, drilling, cutting, ablation, ¿
Note
The course supplies all the needed basics for in-depth understanding of light materials interaction and the induced phenomena resulting in materials transformation. Therefore all existing and coming laser processes can be understood.
Keywords
beam quality, wavelength dependent absorption, multiphoton processes, heat flow, laser bending, key-hole welding, laser cutting, drilling, trepanning, ultrashort-pulse processing, cold ablation, 2-photon polymerization, resolution limits
Assessment methods
Oral and oral presentation
Resources
Bibliography
D. Bäuerle, Laser processing and chemistry, Springer
Ressources en bibliothèque
In the programs
- Materials Science and Engineering (edoc), 2019-2020
- Semester
- Exam form
Oral - Credits
2 - Subject examined
Laser Materials Processing - Lecture
20 Hour(s) - Practical work
8 Hour(s)
- Semester
- Advanced Manufacturing (edoc), 2019-2020
- Semester
- Exam form
Oral - Credits
2 - Subject examined
Laser Materials Processing - Lecture
20 Hour(s) - Practical work
8 Hour(s)
- Semester
Reference week
legend
- Autumn semester
- Winter sessions
- Spring semester
- Summer sessions
- Lecture in French
- Lecture in English
- Lecture in German