Dual-band polarized upconversion photoluminescence enhanced by resonant dielectric metasurfaces
作者机构：Guangdong Provincial Key Laboratory of Optical Fiber Sensing and CommunicationsInstitute of Photonics TechnologyJinan UniversityGuangzhou 511443China Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China Nonlinear Physics CentreResearch School of PhysicsAustralian National UniversityCanberraACT 2601Australia Qingdao Innovation and Development Center of Harbin Engineering UniversityQingdao 266000China
出 版 物：《eLight》 (e光学（英文）)
年 卷 期：2023年第3卷第1期
页 面：57-65页
学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金：supporting by national Key R&D Program of China(2021YFB2802003,2022YFB3607300) the China Postdoctoral Science Foundation funded project(No.2022M711241) National Natural Science Foundation of China(NSFC)(62075084) the Guangdong Basic and Applied Basic Research Foundation(2022B1515020004)
主 题：polarization polarized resonant
摘 要：Lanthanide-doped upconversion nanoparticles emerged recently as an attractive material platform underpinning a broad range of innovative applications such as optical cryptography,luminescent probes,and ***,the intricate 4f-associated electronic transition in upconversion nanoparticles leads only to a weak photoluminescence intensity and unpolarized emission,hindering many applications that demand ultrabright and polarized light ***,we present an effective strategy for achieving ultrabright and dual-band polarized upconversion *** employ resonant dielectric metasurfaces supporting high-quality resonant modes at dual upconversion bands enabling two-order-of-magnitude amplification of upconversion *** demonstrate that dual-band resonances can be selectively switched on polarization,endowing cross-polarization controlled upconversion luminescence with ultra-high degrees of polarization,reaching approximately 0.86 and 0.91 at dual emission wavelengths of 540 and 660 nm,*** strategy offers an effective approach for enhancing photon upconversion processes paving the way towards efficient low-threshold polarization upconversion lasers.
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