Transparent ceramics for high-power infrared lasers operating above μm

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Transparent ceramics for high-power infrared lasers operating above μm

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Transparent ceramics for high-power infrared lasers operating above μm

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of ICTON 2024

ISBN

979-835037730-9

ISSN

2162-7339

e-ISSN

—

Počet stran výsledku

4

Strana od-do

10647861

Název nakladatele

IEEE

Místo vydání

New York

Místo konání akce

Bari

Datum konání akce

14. 7. 2024

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

001315628100275