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Prokop V, Strizik L, Oswald J, Vlcek M, Benes L, Yannopoulos SN, Frumarova B, Wagner T. 1.5 μm photoluminescence and upconversion photoluminescence in GeGaAsS:Er chalcogenide glass. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-1231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The paper reports on ≈1.5 μm Stokes photoluminescence (PL) emission and upconversion photoluminescence (UCPL) emission in the visible and near-infrared spectral region in Er3+-doped Ge25Ga8As2S65 chalcogenide glasses at pumping wavelengths of 980 and 1550 nm. The ≈1.5 μm PL emission spectra are broadened with increasing concentration of Er ions which is discussed in terms of radiation trapping and UCPL dynamics affecting the Er3+: 4
I
13/2 level lifetime. The UCPL emission was observed at ≈530, ≈550, ≈660, ≈810 and ≈990 nm and its overall intensity as well as red-to-green UCPL emission intensity ratio increases with increasing Er concentration. To explore the UCPL dynamics we measured double logarithmic dependency of green (≈550 nm) and red (≈660 nm) UCPL emission versus pump power at pumping wavelength of 975 nm. Moreover, we measured quadrature frequency resolved spectroscopy (QFRS) on green UCPL emission (≈550 nm) using 975 nm pumping wavelength and various excitation powers. The QFRS spectra on green UCPL were analyzed in term of QFRS transfer function for three-level model from which we deduced energy transfer upconversion rate w
11 (s−1) originating from Er3+: 4
I
11/2, 4
I
11/2→4
F
7/2, 4
I
15/2 transitions.
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Affiliation(s)
- Vit Prokop
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology , University of Pardubice , Studentska 573 , Pardubice 532 10 , Czech Republic , Tel.: +420 466 037 000
| | - Lukas Strizik
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology , University of Pardubice , Studentska 573 , Pardubice 532 10 , Czech Republic , Tel.: +420 466 037 000
| | - Jiri Oswald
- Institute of Physics of the Czech Academy of Sciences v.v.i. , Cukrovarnicka 10, 162 00 , Prague 6 , Czech Republic
| | - Milan Vlcek
- Institute of Macromolecular Chemistry of the AS CR, v.v.i. , Heyrovskeho nam. 2, 162 00 , Prague 6 , Czech Republic
| | - Ludvik Benes
- Joint Laboratory of Solid State Chemistry, Faculty of Chemical Technology , University of Pardubice , Pardubice 532 10 , Czech Republic
| | - Spyros N. Yannopoulos
- Foundation for Research and Technology-Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT) , P.O. Box 1414, GR-26504 Patras , Greece
| | - Bozena Frumarova
- Center of Materials and Nanotechnology, Faculty of Chemical Technology , University of Pardubice , nam. Cs. legii 565 , Pardubice 530 02 , Czech Republic
| | - Tomas Wagner
- Center of Materials and Nanotechnology, Faculty of Chemical Technology , University of Pardubice , nam. Cs. legii 565 , Pardubice 530 02 , Czech Republic
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology , University of Pardubice , Studentska 573 , Pardubice 532 10 , Czech Republic
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Zhang Y, Chen B, Xu S, Li X, Zhang J, Sun J, Zhang X, Xia H, Hua R. Reply to the ‘Comment on “A universal approach for calculating the Judd–Ofelt parameters of RE3+ in powdered phosphors and its application for the β-NaYF4:Er3+/Yb3+ phosphor derived from auto-combustion-assisted fluoridation”’ by D. Zhang, Q. Xu and Y. Zhang, Phys. Chem. Chem. Phys., 2019, 21, DOI: 10.1039/C8CP07577H. Phys Chem Chem Phys 2019; 21:10840-10845. [DOI: 10.1039/c9cp01629e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is a Reply to the corresponding Comment and the strategy for the application of Judd–Ofelt theory was discussed.
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Affiliation(s)
- Yanqiu Zhang
- Department of Physics, Dalian Maritime University, Dalian 116026, People's Republic of China
- College of Life Science, Dalian Nationalities University, Dalian 116600, People's Republic of China
| | - Baojiu Chen
- Department of Physics, Dalian Maritime University, Dalian 116026, People's Republic of China
| | - Sai Xu
- Department of Physics, Dalian Maritime University, Dalian 116026, People's Republic of China
| | - Xiangping Li
- Department of Physics, Dalian Maritime University, Dalian 116026, People's Republic of China
| | - Jinsu Zhang
- Department of Physics, Dalian Maritime University, Dalian 116026, People's Republic of China
| | - Jiashi Sun
- Department of Physics, Dalian Maritime University, Dalian 116026, People's Republic of China
| | - Xiangqing Zhang
- Department of Physics, Dalian Maritime University, Dalian 116026, People's Republic of China
| | - Haiping Xia
- Key Laboratory of Photo-Electronic Materials, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Ruinian Hua
- College of Life Science, Dalian Nationalities University, Dalian 116600, People's Republic of China
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