Luminescence, up-conversion and temperature sensing in Er-doped TeO2- PbCl2-WO3 glasses

0542364 - ÚSMH 2022 RIV NL eng J - Článek v odborném periodiku
Kostka, Petr - Yatskiv, Roman - Grym, Jan - Zavadil, Jiří
Luminescence, up-conversion and temperature sensing in Er-doped TeO2- PbCl2-WO3 glasses.
Journal of Non-Crystalline Solids. Roč. 553, FEB 1 (2021), č. článku 120287. ISSN 0022-3093. E-ISSN 1873-4812
Grant CEP: GA ČR(CZ) GA19-07456S
Institucionální podpora: RVO:67985891 ; RVO:67985882
Klíčová slova: tellurite glass * optical-properties * nir * diffraction * neutron * tellurite glasses * rare earths
Obor OECD: Ceramics; Optics (including laser optics and quantum optics) (URE-Y)
Impakt faktor: 4.458, rok: 2021
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/abs/pii/S0022309320303999?via%3Dihub

The TeO2-PbCl2-WO3:Er3+ glasses were prepared by melt-quenching technique. Optical and luminescence properties of the prepared glasses were studied by transmission and low-temperature photoluminescence spectroscopy. Emission intensities of the relevant 4f-4f transitions were studied at room temperature under 514.5 nm excitation. At low-temperatures, the broad-band emission of the host glass centered at about 1000 nm and three superimposed narrow Er3+-related emission bands were observed. Strong infrared to visible up conversion luminescence was observed under 980 nm excitation even at low erbium concentration. The observed green, red, and NIR up-conversion 4f-4f emission bands at 530, 550, 660, and 850 nm are assigned to two photon absorption processes. It follows from the study of luminescence intensity ratio of two green Er(3+)related emission bands due to transitions from thermally coupled H-2(11/2) and S-4(3/2) levels to the ground state I-4(15/2) that the studied glasses can be good candidates for non-contact optical temperature sensor applications.
Trvalý link: http://hdl.handle.net/11104/0319793