Backward optical gain originating from weak localization strengthened three-photon process in Er/Yb co-doped (Pb,La)(Zr,Ti)O_3 ceramics
| Autor: | Jingwen Zhang, Yingyin K. Zou, Hua Zhao, Caixia Xu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Photon
Materials science business.industry Infrared 02 engineering and technology Inelastic scattering 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Weak localization Wavelength Optics Solar cell efficiency Electric field visual_art 0103 physical sciences visual_art.visual_art_medium Ceramic 010306 general physics 0210 nano-technology business |
| Zdroj: | Optics Express. 24:5744 |
| ISSN: | 1094-4087 |
| Popis: | The enhancement of green upconverted emission from the Ersup3+/sup/Ybsup3+/supco-doped (Pb,La)(Zr,Ti)Osub3/subceramic powder under a pumping light with a wavelength of 1480 nm was observed to be greater than 30 times that from the bulk of the same sample. Weak localization of light supported by the spatial profile of scattered light facilitated the three-photon process contributing to stronger green upconverted emission. Significant backward light amplification was also observed and studied in detail. Additionally, the distribution of the localization zones in the sample was investigated using a probing laser beam with a wavelength of 532 nm. The findings in this work could be used in improving the solar cell efficiency, modulating color, and designing smart devices. |
| Databáze: | OpenAIRE |
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