Laser & Optoelectronics Progress, Volume. 60, Issue 23, 2300002(2023)
China's Top 10 Optical Breakthroughs: Sub-50-ns Ultrafast Upconversion Luminescence of Rare-Earth-Doped Nanoparticle
Rare-earth-doped upconversion nanoparticles have attracted considerable attention because of their stable, narrowband, and multi-color luminescence, which features less crosstalk, photo-blinking, and photo-bleaching compared with quantum dots and organic dyes. However, rare-earth ions exhibit long luminescence decay times (ranging from microseconds to milliseconds), low quantum efficiency, weak luminescence intensity, and nondirectional far-field emission, restricting their application in time-dependent nanophotonic devices. Optical fields and electron excitations are coupled in plasmonic nanocavities, which is beneficial for significantly shortening the luminescence decay time, improving the quantum efficiency, enhancing the upconversion luminosity efficiency, and effectively controlling the emission direction. The paper reviews recent progress in nanocavity modulation of rare-earth ion luminescence, with a focus on the work of nanocavity modulation of rare-earth ions to achieve sub-50-ns ultrafast upconversion luminescence, and prospects for its applications in single-photon sources, quantum communication devices, and nanolasers.
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Bowen Kang, Huan Chen, Zhenglong Zhang, Hairong Zheng. China's Top 10 Optical Breakthroughs: Sub-50-ns Ultrafast Upconversion Luminescence of Rare-Earth-Doped Nanoparticle[J]. Laser & Optoelectronics Progress, 2023, 60(23): 2300002
Category: China's Top 10 Optical Breakthroughs Special Column
Received: Oct. 9, 2023
Accepted: Nov. 14, 2023
Published Online: Dec. 21, 2023
The Author Email: Chen Huan (hchen@snnu.edu.cn)