Versatile cascade migrating photon avalanches for full-spectrum extremely nonlinear emissions and super-resolution microscopy  

作　　者：Hui Wu Binxiong Pan Qi Zhao Chenyi Wang Rui Pu Chang Liu Zeheng Chen Zewei Luo Jing Huang Wei Wei Tongsheng Chen Qiuqiang Zhan 

机构地区：[1]South China Normal University,South China Academy of Advanced Optoelectronics,Centre for Optical and Electromagnetic Research,Guangzhou,China [2]South China Normal University,College of Biophotonics,MOE Key Laboratory&Guangdong Provincial Key Laboratory of Laser Life Science,Guangzhou,China [3]South China Normal University,Guangdong Engineering Research Centre of Optoelectronic Intelligent Information Perception,Guangzhou,China

出　　处：《Advanced Photonics》2024年第5期114-126,共13页先进光子学(英文)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.62122028 and 62335008);Guangdong Basic and Applied Basic Research Foundation(Grant Nos.2023B1515040018 and 2018B030306015);National Key Research and Development Program of China(Grant No.2023YFF0722600);Scientific Research Cultivation Fund for Young Faculty of South China Normal University(Grant Nos.23KJ01 and 22KJ30).

摘　　要：Photon avalanche occurring in lanthanide-doped materials exhibits a giant optical nonlinear response of the emission intensity to the excitation intensity,which holds great potential in the applications of optical sensing,super-resolution imaging,quantum detection,and other techniques.However,strategies for developing photon avalanches in nanoparticles are limited,and many widely used lanthanide ions have not yet been able to generate high-efficiency avalanching emissions.A general strategy named cascade migrating photon avalanche was proposed to achieve efficient avalanching emissions with huge optical nonlinearities from a large number of emitters at the nanoscale and at room temperature.Specifically,the optical nonlinearity order of bright avalanched Tm^(3+)-emission was achieved at 63rd order by utilizing the Yb^(3+)∕Pr^(3+)-codoped nano-engine.By further incorporating a Gd^(3+)sublattice migrating network,its avalanching energy can propagate over a long distance to arouse avalanching emission with extreme optical nonlinearities up to 45th order among various emitters(Tb^(3+),Eu^(3+),Dy^(3+),Sm^(3+))in multilayered nanostructures.By achieving abundant avalanching full-spectrum emissions,it would be highly conducive to applications in various fields.For instance,our strategy demonstrated its applicability in multi-color super-resolution microscopic imaging with single-nanoparticle sensitivity and resolution up to 48 nm,utilizing a single low-power 852 nm excitation beam.

关 键 词：photon avalanches super-resolution microscopy upconversion luminescence nonlinear microscopy 

分 类 号：O43[机械工程—光学工程]