Two-photon upconversion luminescence of CdTe quantum dots in silicate glasses irradiated by an infrared femtosecond laser
| Autor: | Teng Ding, Kongyu Lou, Danyang Shen, Jing Qian, Hening Wang, Xiaobo Jiang, Quanzhong Zhao, G. F. Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Physics::Optics 02 engineering and technology Laser pumping 010402 general chemistry 01 natural sciences law.invention Condensed Matter::Materials Science symbols.namesake law Laser-induced fluorescence Absorption (electromagnetic radiation) Condensed Matter::Other business.industry Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Laser 0104 chemical sciences Electronic Optical and Magnetic Materials Quantum dot Femtosecond symbols Optoelectronics 0210 nano-technology business Luminescence Raman spectroscopy |
| Zdroj: | Optical Materials Express. 8:1484 |
| ISSN: | 2159-3930 |
| DOI: | 10.1364/ome.8.001484 |
| Popis: | CdTe quantum dots (QDs) were home fabricated in silicate glasses through the conventional melt-quenching technique. Raman analysis confirms the formation of CdTe QDs, and the tunable optical absorption and emission properties exhibit a dependence on QD-size. Meanwhile, the luminescence of CdTe QDs in silicate glasses excited by an infrared femtosecond laser was demonstrated to be a two-photon process by measuring the dependence of fluorescence intensity on laser pump power. Two-photon induced luminescence was achieved by both 800 nm and 960 nm femtosecond laser pulses. |
| Databáze: | OpenAIRE |
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