Waveguiding Er3 /Yb3 :LiNbO3 films prepared by a sol-gel method using polyvinylpyrrolidone

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43901759" target="_blank" >RIV/60461373:22310/16:43901759 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/16:00469857

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0022231315306323" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0022231315306323</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlumin.2016.04.002" target="_blank" >10.1016/j.jlumin.2016.04.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Waveguiding Er3 /Yb3 :LiNbO3 films prepared by a sol-gel method using polyvinylpyrrolidone

Popis výsledku v původním jazyce

LiNbO3 waveguiding structures are mainly prepared by the chemical or structural modification of LiNbO3 single crystals. An alternative method is the preparation of epitaxially grown LiNbO3 films with wave guiding ability using sol-gel procedures. Our aim was to test the use of 2-methoxyethanol solutions containing polyvinylpyrrolidone (PVP) in the preparation of Er3+/Yb3+ doped LiNbO3 thin films. The solutions were spin-coated on sapphire (0001) substrates and then heat-treated under different regimes on the basis of thermal analysis results. The microstructure of the films was compared using scanning electron microscopy and atomic force microscopy. Optical properties in the IR range were validated by the measurement of luminescence spectra and waveguiding properties (m-line spectroscopy). The influence of the thermal treatment and of PVP molar mass used (29,000 or 360,000 g/mol) was established. Also the influence of additional crystallization on the films properties was tested. A suitable combination of PVP molecular mass and thermal treatment led to the successful preparation of LiNbO3 planar waveguides in the IR range. Thus, the sol-gel deposition from solutions containing PVP is a feasible non-hydrolytic method applicable for the preparation of planar waveguides

Název v anglickém jazyce

Waveguiding Er3 /Yb3 :LiNbO3 films prepared by a sol-gel method using polyvinylpyrrolidone

Popis výsledku anglicky

LiNbO3 waveguiding structures are mainly prepared by the chemical or structural modification of LiNbO3 single crystals. An alternative method is the preparation of epitaxially grown LiNbO3 films with wave guiding ability using sol-gel procedures. Our aim was to test the use of 2-methoxyethanol solutions containing polyvinylpyrrolidone (PVP) in the preparation of Er3+/Yb3+ doped LiNbO3 thin films. The solutions were spin-coated on sapphire (0001) substrates and then heat-treated under different regimes on the basis of thermal analysis results. The microstructure of the films was compared using scanning electron microscopy and atomic force microscopy. Optical properties in the IR range were validated by the measurement of luminescence spectra and waveguiding properties (m-line spectroscopy). The influence of the thermal treatment and of PVP molar mass used (29,000 or 360,000 g/mol) was established. Also the influence of additional crystallization on the films properties was tested. A suitable combination of PVP molecular mass and thermal treatment led to the successful preparation of LiNbO3 planar waveguides in the IR range. Thus, the sol-gel deposition from solutions containing PVP is a feasible non-hydrolytic method applicable for the preparation of planar waveguides

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GBP108%2F12%2FG108" target="_blank" >GBP108/12/G108: Příprava, modifikace a charakterizace materiálů zářením</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Luminescence

ISSN

0022-2313

e-ISSN

—

Svazek periodika

176

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

260-265

Kód UT WoS článku

000375940800036

EID výsledku v databázi Scopus

2-s2.0-84977654868