National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Měření emissních spekter X-záření dusíkového kapilárního výboje
Vrbová, M. ; Jančárek, A. ; Fojtík, A. ; Scholzová, L. ; Havlíková, R. ; Vrba, Pavel
Our aim is to realize soft X-ray laser recombination pumping during the pinch decay and to get lasing on Balmer alpha transition of N6+ ions. To this purpose plasma should be enough heated during the pinch collapse and than quickly cooled during the pinch decay. We look for the optimum experimental arrangement that results in proper capillary plasma pinch. Spectral diagnostics is used as a principal diagnostic tool.
Výzkum postupu pro přípravu aktivních a pasivních vlnovodů v polovodičích
Prajzler, V. ; Špirková, J. ; Oswald, J. ; Peřina, Vratislav ; Hüttel, I. ; Hamáček, J. ; Machovič, V. ; Burian, Z.
The magnetron sputtering was used to fabricate RE doped GaN layers fabricated by magnetron sputtering on various substrate using a gaseous mixture of nitrogen and argon as precursors. The doping of the GaN films with RE occurred simultaneously with the sputtering process when placing the metal RE pellets or RE powder onto the Ga2O3 target. The amount of the incorporated erbium increased with increasing weight of the RE pellets or RE powder. We observed photoluminescence emission at 1 550 nm due to the 4I13/2 → 4I15/2 transition under excitation at 488 nm and 980 nm.
Modelování spektrálních a fotochemických vlastností diiminových karbonylových komplexů přechodových kovů s diiminy
Šebera, Jakub ; Záliš, Stanislav ; Vlček, Antonín
The felxibility pf the coordination sphere of mixed valence carbonyl complexes enables to tune spectral and protochemical properties. The variety of excited states in ilustrated on Ru, Re and W mixed ligand carbonyl complexed. The lowest excited states of [W(CO)4L] and [W(CO)5L’] (L=N,N'-di-methyl-1,4-diazabutadiene, ethylenediamine, 2,2’-bipyridine, phenantroline; L’= pyridine, 4-CN-pyridine, piperidine) ckomplexes were found to be either W -> pi*(L) or W -> pi*(CO) in charakter, depending on the type of the heteroligands.

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