Tuning up-conversion luminescence in Er3+-doped glass ceramic by phase-shaped femtosecond laser field with optimal feedback control
| Autor: | Huai-Yuan Jia, Cheng Xu, Lianzhong Deng, Li Deng, Tianqing Jia, Yunhua Yao, Ye Zheng, Jianrong Qiu, Shian Zhang, Zhenrong Sun, Jianping Li |
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| Rok vydání: | 2018 |
| Předmět: |
Femtosecond pulse shaping
Materials science Physics and Astronomy (miscellaneous) business.industry Doping Phase (waves) Physics::Optics 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Laser 01 natural sciences 0104 chemical sciences law.invention law Femtosecond Optoelectronics 0210 nano-technology business Luminescence Phase modulation Excitation |
| Zdroj: | Frontiers of Physics. 14 |
| ISSN: | 2095-0470 2095-0462 |
| Popis: | Tuning the color output of rare-earth ion doped luminescent nanomaterials has important scientific significance for further extending applications in color displays, laser sources, optoelectronic devices, and biolabeling. In previous studies, pre-designed phase modulation of the femtosecond laser field has been proven to be effective in tuning the luminescence of doped rare-earth ions. Owing to the complex light–matter interaction in the actual experiment, the dynamic range and optimal efficiency for color tuning cannot be determined with the pre-designed phase modulation. This article shares the development of an adaptive femtosecond pulse shaping method based on a genetic algorithm, and its use to manipulate the green and red luminescence tuning in an Er3+-doped glass ceramic under 800-nm femtosecond laser field excitation for the first time. Experimental results show that the intensity ratio of the green and red UC luminescence of the doped Er3+ ions can be either increased or decreased conveniently by the phase-shaped femtosecond laser field with an optimal feedback control. The physical control mechanisms for the color tuning are also explained in detail. This article demonstrates the potential applications of the adaptive femtosecond pulse shaping technique in controlling the color output of doped rare-earth ions. |
| Databáze: | OpenAIRE |
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