Nanocrystalline ceramic coatings for the capillary fiber lasers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F23%3A00583635" target="_blank" >RIV/67985882:_____/23:00583635 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2665632" target="_blank" >http://dx.doi.org/10.1117/12.2665632</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2665632" target="_blank" >10.1117/12.2665632</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanocrystalline ceramic coatings for the capillary fiber lasers

Popis výsledku v původním jazyce

Nanocrystalline holmium-doped titanates have been widely investigated for their luminescence properties. Low-phonon pyrochlore lattice supports the radiative energy transfers improving the efficiency of high-power lasers and amplifiers operating around 2 μm. However, the chemical reactivity toward the silica prevents the incorporation of ceramic nanoparticles in common optical fibers. Deposition of active ceramic layer on the inner wall of capillary or hollow core fiber represents a promising alternative. We present a versatile sol-gel route to active capillary fibers doped by nanocrystalline (Ho0.05La0.95)2Ti2O7. Nanocrystalline films with tailored properties were prepared by sol-gel method. The sols were coated on silica glass slides to receive a set of reference samples and soaked into silica capillary fibers making the coatings on the inner capillary wall. The presented approach led to the formation of homogenous nanocrystalline (Ho0.05La0.95)2Ti2O7 films with tailored nanocrystal size up to 87 nm and refractive index of about 2.2. All prepared samples showed an intensive emission at 2.0 μm under an excitation at 450 nm and the luminescence decay time of about 7.3 ms. The presented method enables the preparation of homogenous and highly transparent thin films with tailored properties. These films are suitable for preparation of bulk luminophores and planar active optical components operating at 2 μm

Název v anglickém jazyce

Nanocrystalline ceramic coatings for the capillary fiber lasers

Popis výsledku anglicky

Nanocrystalline holmium-doped titanates have been widely investigated for their luminescence properties. Low-phonon pyrochlore lattice supports the radiative energy transfers improving the efficiency of high-power lasers and amplifiers operating around 2 μm. However, the chemical reactivity toward the silica prevents the incorporation of ceramic nanoparticles in common optical fibers. Deposition of active ceramic layer on the inner wall of capillary or hollow core fiber represents a promising alternative. We present a versatile sol-gel route to active capillary fibers doped by nanocrystalline (Ho0.05La0.95)2Ti2O7. Nanocrystalline films with tailored properties were prepared by sol-gel method. The sols were coated on silica glass slides to receive a set of reference samples and soaked into silica capillary fibers making the coatings on the inner capillary wall. The presented approach led to the formation of homogenous nanocrystalline (Ho0.05La0.95)2Ti2O7 films with tailored nanocrystal size up to 87 nm and refractive index of about 2.2. All prepared samples showed an intensive emission at 2.0 μm under an excitation at 450 nm and the luminescence decay time of about 7.3 ms. The presented method enables the preparation of homogenous and highly transparent thin films with tailored properties. These films are suitable for preparation of bulk luminophores and planar active optical components operating at 2 μm

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA22-17604S" target="_blank" >GA22-17604S: Optická vlákna z transparentní keramiky pro lasery pracující v okolí 2.9 µm</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of SPIE - The International Society for Optical Engineering

ISBN

978-151066266-7

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

7

Strana od-do

125730X

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Praha

Datum konání akce

24. 4. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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