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Labio, a.s. – research study of gas chromatograph enhancement
Divoký, Martin
This project aimed at testing and development of a UV gas chromatograph Labio G11. A spectrometer from the chromatograph was modified in order to increase nitrogen gas flow in the device and speed at which the inner of the spectrometer is filled with nitrogen (that doesn’t absorb in UV). This allowed decreasing startup time of the spectrometer. Additionally, sensitivity of the spectrometer in region below 150 nm was tested and ways to increase this sensitivity were proposed.
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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.
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Prodlužovač impulsů s vysokou spektrální a výkonovou propustností
Divoký, M. ; Smrž, M. ; Straka, Petr
We present a pulse stretcher based on modified Öffner triplet using an off-plane (conical) diffraction under the Littrow configuration. Our system was ray-traced and the results are comparable with a similar design using in-plane diffraction. A slight conical diffraction is not a serious problem which was demonstrated by stretching the 10-fs pulses from a Ti:sapphire laser to ~300 ps and backcompressing them to 16 fs with a high power throughput over the system and low distortion of the pulses.
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