1.2 µm and 1.5 µm near-infrared photoluminescence and visible upconversion photoluminescence in GeGaS:Er.sup.3+./sup./Ho.sup.3+./sup. glasses under 980 nm excitation

0500927 - FZÚ 2019 RIV NL eng J - Journal Article
Himics, D. - Střižík, L. - Oswald, Jiří - Holubová, J. - Beneš, L. - Slang, S. - Frumarová, Božena - Wágner, T.
1.2 µm and 1.5 µm near-infrared photoluminescence and visible upconversion photoluminescence in GeGaS:Er³⁺/Ho³⁺ glasses under 980 nm excitation.
Journal of Materials Science-Materials in Electronics. Roč. 29, č. 20 (2018), s. 17314-17322. ISSN 0957-4522. E-ISSN 1573-482X
Institutional support: RVO:68378271 ; RVO:61389013
Keywords : GeGaS glasses * upconversion photoluminescence * Er * Ho
OECD category: Inorganic and nuclear chemistry; Inorganic and nuclear chemistry (UMCH-V)
Impact factor: 2.195, year: 2018

We have investigated the Ho3+ 1.2 μm, Er3+ 1.5 μm and visible upconversion photoluminescence in Er3+/Ho3+ co-doped GeGaS chalcogenide glasses at pumping wavelength of 980 nm. Er ions were used as a sensitizer with efficient Er3+→Ho3+ energy transfer resulting in intense Ho3+ 1.2 μm photoluminescence emission. The found maximum value of the Er3+→Ho3+ energy transfer parameter, wETU = 1.38 × 10-17 cm3s-1, suggests the efficiency of Er3+ sensitization at pumping wavelength of 980 nm.
Permanent Link: http://hdl.handle.net/11104/0292961