Transparent ceramics for high-power infrared lasers operating above μm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F24%3A00603512" target="_blank" >RIV/67985882:_____/24:00603512 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore-ieee-org.ezproxy.techlib.cz/document/10647861" target="_blank" >https://ieeexplore-ieee-org.ezproxy.techlib.cz/document/10647861</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ICTON62926.2024.10647861" target="_blank" >10.1109/ICTON62926.2024.10647861</a>

Result language
angličtina
Original language name
Transparent ceramics for high-power infrared lasers operating above μm
Original language description
Solid-state lasers are a key part of advanced devices and great efforts has devoted to improving their performance, including the research of novel materials as a powerful alternative to conventional glass or single-crystals. We demonstrated a versatile sol-gel approach to nanocrystalline (Ho0.03La0.97)2Zr2O7 thin films. We proved Ho3+ ions regularly substituted La3+ ions in the host matrix. The residual -OH groups were presented in the samples bonded on La3+ ions. The highest phonon energy was 653 cm-1 allowing the luminescence up to 3.06 μm. The film of the thickness of 380 nm showed a refractive index of 2.28 at a wavelength of 632 nm. The sample showed luminescence spectra characteristic for Ho3+ ions. The emission maximum was observed for the electronic transition 5I7 →5I8 at 2.1 μm. The luminescence intensity of the electronic transition 5I6 →5I7 at 2.9 μm reached 7% of the maxima. The luminescence decay time recorded at 2.1 μm and 2.9 μm was 6.814 ms and 0.565 ms, respectively. High thermal and chemical stability of proposed materials, together with advanced processing methods open new horizons in technology of the mid-infrared active waveguides and fibers with improved lasing efficiency and stability
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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