CO2 laser assisted processing of (Ho0.05Y0.95) 2Ti2O7 coatings for infrared photonics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F24%3A00603616" target="_blank" >RIV/67985882:_____/24:00603616 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.epj-conferences.org/articles/epjconf/abs/2024/19/epjconf_eosam2024_06002/epjconf_eosam2024_06002.html" target="_blank" >https://www.epj-conferences.org/articles/epjconf/abs/2024/19/epjconf_eosam2024_06002/epjconf_eosam2024_06002.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/202430906002" target="_blank" >10.1051/epjconf/202430906002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CO2 laser assisted processing of (Ho0.05Y0.95) 2Ti2O7 coatings for infrared photonics

Popis výsledku v původním jazyce

We demonstrated CO2 laser assisted processing of highly transparent (Ho0.05Y0.95)2Ti2O7 nanocrystalline coatings. The amorphous coating of the thickness of 577 nm was prepared by subsequent spin-coating of a colloidal solution followed by densification at 700°C in a radiation furnace. The densified coating was irradiated by a laser beam of a power density of 20 mW/mm2 for 60 s to induce the crystallization process. The nanocrystals formation caused the densification of the coatings reducing the thickness to 490 nm and increased the refractive index to 2.088. The coating exhibited strong luminescence at 2.1 and 2.95 μm corresponding to 5I7→5I8 and 5I6→5I7 electronic transitions, respectively. The corresponding time-resolved luminesce records showed the single-exponential decay course reaching the values of 8.4 ms and 0.221 ms for the emissions recorded at 2.1 and 2.95 μm, respectively. The demonstrated process can be used to prepare a luminescent coating with tailored properties. CO2 laser assisted processing can be used in a manner of direct laser writing for the preparation of integrated optical waveguides and amplifiers as a powerful alternative to conventional thermal processing

Název v anglickém jazyce

CO2 laser assisted processing of (Ho0.05Y0.95) 2Ti2O7 coatings for infrared photonics

Popis výsledku anglicky

We demonstrated CO2 laser assisted processing of highly transparent (Ho0.05Y0.95)2Ti2O7 nanocrystalline coatings. The amorphous coating of the thickness of 577 nm was prepared by subsequent spin-coating of a colloidal solution followed by densification at 700°C in a radiation furnace. The densified coating was irradiated by a laser beam of a power density of 20 mW/mm2 for 60 s to induce the crystallization process. The nanocrystals formation caused the densification of the coatings reducing the thickness to 490 nm and increased the refractive index to 2.088. The coating exhibited strong luminescence at 2.1 and 2.95 μm corresponding to 5I7→5I8 and 5I6→5I7 electronic transitions, respectively. The corresponding time-resolved luminesce records showed the single-exponential decay course reaching the values of 8.4 ms and 0.221 ms for the emissions recorded at 2.1 and 2.95 μm, respectively. The demonstrated process can be used to prepare a luminescent coating with tailored properties. CO2 laser assisted processing can be used in a manner of direct laser writing for the preparation of integrated optical waveguides and amplifiers as a powerful alternative to conventional thermal processing

Druh

D - Stať ve sborníku

CEP obor

—

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

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

EPJ Web of Conferences

ISBN

—

ISSN

2101-6275

e-ISSN

—

Počet stran výsledku

2

Strana od-do

06002

Název nakladatele

EDP Sciences

Místo vydání

Les Ulis

Místo konání akce

Naples

Datum konání akce

9. 9. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001353751800096