Effect of PbO on the spectral and thermo-optical properties of Nd 3+ -doped phosphate laser glass
| Autor: | Qianwen Yin, Shuai Kang, Lili Hu, Dongbing He, Shunguang Li, Xue Wang |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Analytical chemistry Mineralogy 02 engineering and technology 01 natural sciences Thermal expansion law.invention Inorganic Chemistry chemistry.chemical_compound symbols.namesake law 0103 physical sciences Emission spectrum Electrical and Electronic Engineering Physical and Theoretical Chemistry Absorption (electromagnetic radiation) Spectroscopy 010302 applied physics Organic Chemistry Doping 021001 nanoscience & nanotechnology Phosphate Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Melt quenching chemistry symbols 0210 nano-technology Raman spectroscopy |
| Zdroj: | Optical Materials. 66:23-28 |
| ISSN: | 0925-3467 |
| Popis: | Nd3+-doped P2O5-K2O–Al2O3–BaO-PbO phosphate glasses with various PbO/BaO ratios were synthesized using the melt quenching technique. Raman, absorption, and emission spectra were measured to investigate the effects of PbO/BaO ratios on the structures and spectroscopic properties of the glasses. The emission cross-sections of the Nd3+-doped phosphate glasses were calculated using the Judd–Ofelt theory, and were found to increase from 4.37 × 10−20 to 4.50 × 10−20 cm2 as the PbO/BaO ratio increased. In addition, thermo-optical properties were measured using an interferometric technique. The thermo-optical coefficients, which were −1.49 × 10−6, −1.65 × 10−6, and −1.64 × 10−6 K−1, respectively, were all largely negative values. The thermal expansion coefficients of the three glass samples varied within a small range. The results showed that increasing the PbO/BaO ratio of phosphate glasses can improve the laser properties while maintaining their good thermo-optical properties. |
| Databáze: | OpenAIRE |
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