National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Nanosecond laser damage of metallic mirrors
Muresan, Mihai-George ; Pilná, Kateřina ; Čech, Pavel ; Mydlář, Martin ; Vanda, Jan ; Navrátil, Petr
Laser surface processing is an established method to introduce surface functionalities on solid surfaces with the required throughputs for a commercial process. Fabrication of laser induced surface structures in an effective matter is done by laser interaction studies, which reveal the best processing parameters (laser wavelength, fluence, repetition, together with the processing speed and environment). Customized solutions are providing the best yields and they are being implemented faster than ever. However, the optics manufacturers are not being to keep up the pace with the new requirements, so they turn instead on older, but safer technology. In order to get a better understanding of optics capabilities, thorough testing is required. Common laser metallic mirrors, commercially available, are being rigorously tested using a nanosecond Yb:YAG laser and the results are compared with the vendor’s information.\n
Lidt Tests On Optical Elements Under Special Conditions
Oulehla, Jindřich
This contribution presents a technology for the design, deposition and testing of thin film coatings on optical elements designed to operate in high power pulsed laser systems. I have designed and built a test station which is used as an addition to the thin film coating production facilities used at the Institute of Scientific Instruments.
Station for LIDT tests of optical components under cryogenic conditions
Oulehla, Jindřich
In this contribution we present a technology for deposition and testing of interference coatings for optical components designed to operate as in power pulsed lasers. We designed and are building a testing apparatus which will serve as an addition to our existing optical coating production facility. This allows us to prepare a coating which is then tested and the results might be used to optimize it. The test samples are placed in a vacuum chamber, cooled down to approximately 120K and Illuminated by a pulsed laser to determine laser damage threshold of the coatings under conditions similar to real life operation. Optical microscopy and spectrophotometer measurements are used for coating investigation after the conducted experiments.
LIDT Tests of Optical Components in Cryogenic Temperatures
Oulehla, Jindřich
We decribe our new work on producing of optical componets in cryogenic temperature. This components will be utilized in high-power laser systems (e.g. ELI, HiLase). Work objective was to develop experimental setup for testing different samples in wide range of temperature.

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