Národní úložiště šedé literatury Nalezeno 3 záznamů.  Hledání trvalo 0.00 vteřin. 
Linear antenna microwave plasma treatment of diamond
Neykova, Neda ; Kozak, Halyna ; Kromka, Alexander ; Bryknar, Z. ; Vaněček, Milan
The presented works reports on a hydrogen termination of nano-crystalline diamond films performed at low temperature.
Proposal of ultra-high-power beams at the kilojoule iodine laser PALS
Novák, Ondřej ; Divoký, M. ; Böhm, P. ; Smrž, M. ; Turčičová, Hana ; Straka, Petr
The iodine kJ laser PALS is widely used by users. To extend the scope of the experiments, a proposal of new ultra-high-power (UHP) beams was done in detail. The model of the design is based on routine parameters of the laser PALS and on state-of-the-art of the ultra-high-power beams generation. Using the OPCPA technique, we propose two new alternative UHP beams at PALS with powers of 100 TW and 1 PW, respectively, including a pulse compressor and new front-end amplifiers. The amplification chain was simulated using coupled wave equations for optical parametric amplification. Layout of the two new beams in the existing PALS laser hall was also proposed.
Improving spatial precision of 2D-imaging color filter spectrograph with wedged optical filters
Divoký, M. ; Smrž, M. ; Straka, Petr
A simple and practical modification of a two-dimensional-imaging color filter spectrograph is presented. By the modification, the spatial displacement of images taken on different wavelengths was reduced below 10 micrometers in spite of miliradian wedges of the filters and beam pointing instability. The device allows precise two-dimensional measurement of beam dispersion and spectral beam profiles in semi-compact design.

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