Determination of sapphire crystal melt refractive index in visible range

Autor:	V. F. Seregin, G. A. Bufetova, Vladimir B. Tsvetkov, S. Ya. Rusanov, V. V. Kashin
Rok vydání:	2021
Předmět:	Inorganic Chemistry Crystal Range (particle radiation) Materials science Pedestal Thermal radiation Dispersion (optics) Materials Chemistry Analytical chemistry Sapphire Condensed Matter Physics Polarization (waves) Refractive index
Zdroj:	Journal of Crystal Growth. 575:126355
ISSN:	0022-0248
Popis:	The refractive index (RI) of a sapphire crystal melt was determined at high temperatures (exceeding 2350 K) in the visible spectral range. Data were obtained from the analysis results of the state of polarization of the intrinsic thermal radiation of the melt during the laser-heated pedestal growth process. The derived sapphire melt RI is n = 1.72 ± 0.02 for λ = 550 nm, and the linear part of the dispersion in the range 400–750 nm is characterized by the coefficient dn/dλ = −(1.93 ± 0.01) × 10–4 nm − 1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::01e7c4c802ce3b8d753006a2683a000c https://doi.org/10.1016/j.jcrysgro.2021.126355 Zobrazit plný text záznamu Full Text from ScienceDirect