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Experimental research on thermal and dynamic effects of K9 optical lenses irradiated by low frequency femtosecond laser
- Source :
- Journal of the Optical Society of America B. 36:391
- Publication Year :
- 2019
- Publisher :
- Optica Publishing Group, 2019.
-
Abstract
- Damages by a laser to materials are mainly caused by thermal and dynamic effects; such effects are referable for evaluating damage by a laser to the optical lens and the design of a laser system. We have designed several independent laser–material interaction measurement systems and carried out experimental research based on them. The results show that the laser plasma oscillation frequency is 500 Hz and accompanied by discharge phenomena. The average pressure stress on the material is 1.1 GPa; then it attenuates to the Lamb wave; and the surface coating of the lens reduces the radius of the heat-affected zone to one third of that without film.
- Subjects :
- Materials science
business.industry
Statistical and Nonlinear Physics
Low frequency
Plasma oscillation
Laser
01 natural sciences
Atomic and Molecular Physics, and Optics
law.invention
010309 optics
Lens (optics)
Surface coating
Optics
Lamb waves
law
Surface wave
0103 physical sciences
Femtosecond
business
Subjects
Details
- ISSN :
- 15208540 and 07403224
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- Journal of the Optical Society of America B
- Accession number :
- edsair.doi...........a051f6ffcd1c08363b537434b645ae1c