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| Description
| - The spectroscopic and laser properties of bulk Bridgman-grown Fe,Cr:Zn1-xMgxSe single crystals with the various concentrations of Mg (x = 0.19; x = 0.27; x = 0.38) were investigated in a wide temperature range. Pumping was provided by a 2.94 um Q-switched Er:YAG laser with a maximal energy of 15 mJ in 120 ns pulse and repetition rate 1 Hz. Q-switched operation was achieved by the Brewster angle cut LiNbO3 Pockels cell placed between the rear mirror and the Er:YAG laser active medium. Pump radiation was directed into the Fe:ZnMgSe crystal placed inside the LN cooled dewar. The 55 mm long plane-concave cavity was formed by a dichroic pumping mirror (T = 92 % @ 2.94 um and R = 100 % @ 4 - 5 um) and an output coupler (R = 95 % @ 4.5 um, r = 200 mm). A strong dependence of output pulse energy on temperature was observed for all samples. The maximum output Fe,Cr:Zn1- xMgxSe laser energy was 230 uJ and 180 uJ (for Mg concentration x = 0.19 and x = 0.38, respectively) for gain switched operation at 88 K. The central emission wavelength of ~ 4600 nm, ~ 4700 nm and ~ 4800 nm for Mg concentration x = 0.19; x = 0.27, and x = 0.37, respectively at 88 K was obtained. The emission wavelength was found to increase up to ~ 4700 nm and ~ 4900 nm at 250 K for Mg concentration x = 0.19 and x = 0.38, respectively. These results show the possibility of obtaining sufficiently longer oscillation wavelengths compared to the previously studied Fe:ZnSe active medium especially at liquid nitrogen temperatures when pumping by free-running Er:YAG laser becomes possible. Fluorescence spectra and lifetimes of Fe2+ ions in different Zn1-xMgxSe crystals in the range from 250 K down to 80 K were also measured.
- The spectroscopic and laser properties of bulk Bridgman-grown Fe,Cr:Zn1-xMgxSe single crystals with the various concentrations of Mg (x = 0.19; x = 0.27; x = 0.38) were investigated in a wide temperature range. Pumping was provided by a 2.94 um Q-switched Er:YAG laser with a maximal energy of 15 mJ in 120 ns pulse and repetition rate 1 Hz. Q-switched operation was achieved by the Brewster angle cut LiNbO3 Pockels cell placed between the rear mirror and the Er:YAG laser active medium. Pump radiation was directed into the Fe:ZnMgSe crystal placed inside the LN cooled dewar. The 55 mm long plane-concave cavity was formed by a dichroic pumping mirror (T = 92 % @ 2.94 um and R = 100 % @ 4 - 5 um) and an output coupler (R = 95 % @ 4.5 um, r = 200 mm). A strong dependence of output pulse energy on temperature was observed for all samples. The maximum output Fe,Cr:Zn1- xMgxSe laser energy was 230 uJ and 180 uJ (for Mg concentration x = 0.19 and x = 0.38, respectively) for gain switched operation at 88 K. The central emission wavelength of ~ 4600 nm, ~ 4700 nm and ~ 4800 nm for Mg concentration x = 0.19; x = 0.27, and x = 0.37, respectively at 88 K was obtained. The emission wavelength was found to increase up to ~ 4700 nm and ~ 4900 nm at 250 K for Mg concentration x = 0.19 and x = 0.38, respectively. These results show the possibility of obtaining sufficiently longer oscillation wavelengths compared to the previously studied Fe:ZnSe active medium especially at liquid nitrogen temperatures when pumping by free-running Er:YAG laser becomes possible. Fluorescence spectra and lifetimes of Fe2+ ions in different Zn1-xMgxSe crystals in the range from 250 K down to 80 K were also measured. (en)
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| Title
| - Gain Switched Fe:ZnMgSe Laser Oscillation under Cryogenic Temperature
- Gain Switched Fe:ZnMgSe Laser Oscillation under Cryogenic Temperature (en)
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| skos:prefLabel
| - Gain Switched Fe:ZnMgSe Laser Oscillation under Cryogenic Temperature
- Gain Switched Fe:ZnMgSe Laser Oscillation under Cryogenic Temperature (en)
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| skos:notation
| - RIV/68407700:21340/14:00219594!RIV15-GA0-21340___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21340/14:00219594
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - mid-infrared radiation; bulk Fe:ZnMgSe laser; Er:YAG laser; cryogenic temperature (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Proceedings of SPIE vol. 8959: Solid State Lasers XXIII: Technology and Devices
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Jelínek, Michal
- Jelínková, Helena
- Kubeček, Václav
- Němec, Michal
- Šulc, Jan
- Doroshenko, M.
- Vyhlídal, David
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open.../riv/zahajeniAkce
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| issn
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| number of pages
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| http://bibframe.org/vocab/doi
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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