期刊
APPLIED PHYSICS B-LASERS AND OPTICS
卷 124, 期 12, 页码 -出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00340-018-7097-4
关键词
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资金
- International Cooperation Program for Excellent Lectures of 2017 by Shandong Province Education Department
- National Natural Science Foundation of China [11874232, 11504194]
- Key research and development plan in Shandong Province [2018GGX101008]
- Natural Science Foundation of Shandong Province, China [ZR2014FP012]
- Doctoral Found of QUST [010022936]
We report plasmonic enhanced random lasing from dye-doped polymer with dispersed Au nanoparticles (DP@Au NPs). The Au nanoparticles, fabricated by simple and convenient sputtering and thermal annealing processes, are employed as scatterers in a DCJTB-doped PMMA film. Random-arranged and nearly spherical nano-Au particles are fabricated by optimizing the sputtering time and annealing temperature. Multiple scattering coming from particles plays a fundamental role in random lasing emissions. We demonstrate low-threshold random lasing and also the polarization dependence by observing emission as a function of pump beam power and detection polarization in DP@Au NP system. Our findings provide an effective approach for random lasing and could pave a way for the fabrication of efficient random lasing devices.
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