Up-conversion Luminescence Performance of Oxyfluoride Glass-ceramic Containing Er3+∶NaYF4 Nanocrystals Under Two-wavelength Excitation

发光学报 Pub Date : 2023-01-01 DOI:10.37188/cjl.20230069

Saihui Li, Shiliang Kang, Z. Chen, Yuxin Shao, Changgui Lin

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引用次数: 0

Abstract

： Efficient optical modulation enables a prominent improvement of optical conversion efficiency and regu⁃ lation of optical response rate ， which shows great potential in the field of optoelectronics. However ， the weak interac⁃ tion between photons poses a strong obstacle for manipulating photon - photon interactivity. Here ， upon simultaneous excitation of 850 nm and 1 550 nm ， a fast - slow optical modulation of green up - conversion luminescence in oxyfluo⁃ ride glass ceramics containing Er 3+ ∶ NaYF 4 nanocrystals can be achieved. Compared with the sum of the lumines⁃ cence intensity with two single - wavelength excitations ， the green up - conversion luminescence intensity excited by si⁃ multaneous two - wavelength presents a significant increase by an order of magnitude. It is worth noting that the fast - slow response rate of green up - conversion luminescence relies on the pump strategy of two - wavelength excitation ， showing as high as four times of the fast - slow response difference. The fast - slow optical modulation of green up - con⁃ version luminescence under two - wavelength excitation may find potential applications in emerging all - optical switching.

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含Er3+∶NaYF4纳米晶的氟氧玻璃陶瓷双波长激发下的上转换发光性能

:高效的光调制可以显著提高光转换效率和光响应率的调节，在光电子学领域显示出巨大的潜力。然而，光子之间的弱相互作用对操纵光子-光子相互作用造成了很大的障碍。在850 nm和1 550 nm的同时激发下，可以实现含er3 +∶nayf4纳米晶体的氧化氟合成玻璃陶瓷的快慢光调制。与两个单波长激发的发光强度之和相比，两波长同时激发的绿色上转换发光强度显著提高了一个数量级。值得注意的是，绿色上转换发光的快慢响应速率依赖于双波长激发的泵浦策略，其快慢响应差值高达4倍。两波长激发下的快慢光调制技术在新兴的全光开关中有潜在的应用前景。

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来源期刊

发光学报 Physics and Astronomy-Radiation

CiteScore

1.90

自引率

0.00%

发文量

7477

期刊介绍： Chinese Journal of Luminescence (CJL), supervised by Chinese Academy of Sciences (CAS), Sponsored by Committee on luminescence of Chinese Physical Society and Changchun Institute of Optics, Fine mechanics and Physics（CIOMP）of Chinese Academy of Sciences, is an authoritatively scientific and technical periodical of China in the field of luminescence, which is read widely in providing original papers and reviews that describe recent developments on basic theory and experimental studies of excited state processes and green lighting projects. The journal was established at 1980, and named after LUMINESCENCE AND DISPLAY, then renamed as CJL in 1986.