Investigation of the refractive index repeatability for tantalum pentoxide coatings, prepared by physical vapor film deposition techniques

Autor: Mark Schürmann, Josephine Wolf, Lars Mechold, Kai Starke, Martin Bischoff, Michael Kennedy, Henrik Ehlers, Thomas Hegemann, Olaf Stenzel, Norbert Kaiser, S Schippel, Florian Carstens, Tobias Nowitzki, R Rauhut, Rüdiger Foest, Detlev Ristau, J. Harhausen, Holger Reus, Jens Schumacher, Harro Hagedorn, Alfons Zöller, Steffen Wilbrandt
Přispěvatelé: Publica
Rok vydání: 2017
Předmět:
Zdroj: Applied optics. 56(4)
ISSN: 1539-4522
Popis: Random effects in the repeatability of refractive index and absorption edge position of tantalum pentoxide layers prepared by plasma-ion-assisted electron-beam evaporation, ion beam sputtering, and magnetron sputtering are investigated and quantified. Standard deviations in refractive index between 4 ∗ 10 -4 and 4 ∗ 10 -3 have been obtained. Here, lowest standard deviations in refractive index close to our detection threshold could be achieved by both ion beam sputtering and plasma-ion-assisted deposition. In relation to the corresponding mean values, the standard deviations in band-edge position and refractive index are of similar order.
Databáze: OpenAIRE