Mid-IR lasing of Fe2+ ions via Cr2+ -> Fe2+ energy transfer process with YLF:Er or laser diode pumping at 1.7 μm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00343725" target="_blank" >RIV/68407700:21340/20:00343725 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1364/OME.384392" target="_blank" >https://doi.org/10.1364/OME.384392</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OME.384392" target="_blank" >10.1364/OME.384392</a>

Result language
angličtina
Original language name
Mid-IR lasing of Fe2+ ions via Cr2+ -> Fe2+ energy transfer process with YLF:Er or laser diode pumping at 1.7 μm
Original language description
A nonradiative Cr2+ -> Fe2+ ions energy transfer process in Zn1-xMnxSe:Cr2+,Fe2+ (x = 0.05) single crystal with a Cr2+ to Fe2+ ions concentration ratio about 2.5:1 was investigated under short-pulse (200 ns) similar to 1.73 mu m excitation by YLF:Er laser. Fe2+ ions lasing in a temperature range from 78 K up to 200 K was achieved and the central oscillation wavelength was observed to increase from 4.1 mu m to 4.4 mu m, depending on the temperature of the active medium. Moreover, stable Fe2+ ions lasing under a "long" pulse excitation (1 ms, 10 Hz) by a similar to 1.71 mu m laser diode were demonstrated. The laser generated in a temperature range from 78 K up to 110 K at a central wavelength around similar to 4.17 mu m. The maximum mean laser output power of 4.1 mW with a slope efficiency of 2.3% with respect to the absorbed power was achieved. These results present a new possibility to develop a simple and compact diode-pumped coherent mid-infrared (4.1-4.3 mu m) laser sources. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
<a href="/en/project/GA18-11954S" target="_blank" >GA18-11954S: Optimization of the solid-state laser active materials for spectral range from near- up to mid-infrared</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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