Wide spectral range optical characterization of tantalum pentoxide (Ta2O5) films by the universal dispersion model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F25%3AN0000121" target="_blank" >RIV/00177016:_____/25:N0000121 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00141079

Výsledek na webu

<a href="https://opg.optica.org/ome/fulltext.cfm?uri=ome-15-4-903" target="_blank" >https://opg.optica.org/ome/fulltext.cfm?uri=ome-15-4-903</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OME.550708" target="_blank" >10.1364/OME.550708</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Wide spectral range optical characterization of tantalum pentoxide (Ta2O5) films by the universal dispersion model

Popis výsledku v původním jazyce

This study presents a comprehensive optical characterization of tantalum pentoxide (Ta2O5) thin films across a wide spectral range, using a combination of ellipsometric and spectrophotometric data. The films prepared using e-beam evaporation, ranging in thickness from 20 to 250 nm, were analyzed using a complex structural model that integrates inhomogeneous layer profiles with three distinct phases, allowing for a more accurate representation of the material's optical properties. A universal dispersion model was employed to describe the optical constants, revealing the refractive index and extinction coefficient with exceptional precision. This work stands out due to the extensive spectral range covered-extending from the far infrared (400 mu m, 25 cm-1) to the vacuum ultraviolet (116 nm, 10.7 eV)-and the diverse array of instruments used, providing a level of detail and insight into Ta2O5's optical behavior that has not been achieved before. This novel approach offers significant advancements in understanding Ta2O5's optical characteristics, demonstrating its potential for advanced optical coatings and optoelectronic applications.

Název v anglickém jazyce

Wide spectral range optical characterization of tantalum pentoxide (Ta2O5) films by the universal dispersion model

Popis výsledku anglicky

This study presents a comprehensive optical characterization of tantalum pentoxide (Ta2O5) thin films across a wide spectral range, using a combination of ellipsometric and spectrophotometric data. The films prepared using e-beam evaporation, ranging in thickness from 20 to 250 nm, were analyzed using a complex structural model that integrates inhomogeneous layer profiles with three distinct phases, allowing for a more accurate representation of the material's optical properties. A universal dispersion model was employed to describe the optical constants, revealing the refractive index and extinction coefficient with exceptional precision. This work stands out due to the extensive spectral range covered-extending from the far infrared (400 mu m, 25 cm-1) to the vacuum ultraviolet (116 nm, 10.7 eV)-and the diverse array of instruments used, providing a level of detail and insight into Ta2O5's optical behavior that has not been achieved before. This novel approach offers significant advancements in understanding Ta2O5's optical characteristics, demonstrating its potential for advanced optical coatings and optoelectronic applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/EI22_002%2F0000677" target="_blank" >EI22_002/0000677: Pokročilá optika pro aplikace ultrakrátkých laserových pulzů ve vlnové oblasti DUV, VIS a NIR</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Optical Materials Express

ISSN

2159-3930

e-ISSN

—

Svazek periodika

15

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

903-919

Kód UT WoS článku

001459720200003

EID výsledku v databázi Scopus

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