Upconversion photon quantification of holmium and erbium ions in waveguide-adaptive germanate glasses
| Autor: | Z.Q. Wang, E. Y. B. Pun, Hao Lin, C. L. Zhu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Photon Physics and Astronomy (miscellaneous) business.industry Doping General Engineering Analytical chemistry General Physics and Astronomy chemistry.chemical_element Quantum yield 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Photon upconversion 010309 optics Optics chemistry 0103 physical sciences Germanate Laser power scaling 0210 nano-technology Holmium business Power density |
| Zdroj: | Applied Physics B. 123 |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s00340-017-6648-4 |
| Popis: | Visible upconversion photons have been quantified precisely in Ho3+/Yb3+ and Er3+/Yb3+ doped waveguide-adaptive aluminum germanate (NMAG) glasses, and effective red and green upconversion emissions generated from Ho3+ and Er3+ were illustrated in contrast. The emission photon numbers are identified as a positive correlation with the laser power densities, and stronger dominance of red emission in the Ho3+/Yb3+ doped NMAG glasses and more effectiveness of photon generation in Er3+/Yb3+ doped case were proved. When the power density is 1227 W/cm2, the absolute quantum yields for red and green (660 and 548 nm) upconversion fluorescences are derived to be 2.41 × 10−5 and 0.17 × 10−5 in Ho3+/Yb3+ doped NMAG glasses, and the ones (665 and 548 nm) in Er3+/Yb3+ doped NMAG glasses are 4.26 × 10−5 and 1.44 × 10−5. The macroscopic quantization of red and green upconversion emissions in Ho3+/Yb3+ and Er3+/Yb3+ doped waveguide-adaptive NMAG glasses provides the original referenced data for developing upconversion waveguide-typed irradiation light sources. |
| Databáze: | OpenAIRE |
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