Thermo-optic properties of Yb:Lu2O3 single crystals

Autor:	Pavel Loiko, Christian Kränkel, Mark Peltz, Bastian Deppe, Konstantin Yumashev, Xavier Mateos, R. Schödel, Christoph Liebald
Rok vydání:	2015
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Band gap General Engineering Analytical chemistry General Physics and Astronomy Radius Thermal expansion Crystal Wavelength Optics Thermal Dispersion (optics) business Single crystal
Zdroj:	Applied Physics B. 120:601-607
ISSN:	1432-0649 0946-2171
DOI:	10.1007/s00340-015-6171-4
Popis:	A detailed study of thermo-optic properties of 1.5 at.% Yb:Lu2O3 single crystal is performed. Thermo-optic dispersion formulas are derived for dn/dT coefficient and thermal coefficient of the optical path. At the wavelength of 1.03 μm, dn/dT = 5.8 × 10−6 K−1. High-precision temperature-dependent measurements of the thermal expansion coefficient α are performed. At the room temperature (RT), α = 5.880 ± 0.014 × 10−6 K−1. Temperature dependence of the bandgap is analyzed, yielding RT value of E g = 5.15 eV and dE g/dT = –3.7 × 10−4 eV/K. Sensitivity factor of the thermal lens is calculated for a diode-pumped Yb:Lu2O3 crystal versus the pump spot radius and crystal temperature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6b155f0129709b5ac5d7b5adc395a84d https://doi.org/10.1007/s00340-015-6171-4 Zobrazit plný text záznamu Plný text ve formátu PDF