典型文献
Giant excitonic upconverted emission from two-dimensional semiconductor in doubly resonant plasmonic nanocavity
文献摘要：
Phonon-assisted upconverted emission is the heart of energy harvesting,bioimaging,optical cryptography,and optical refrigeration.It has been demonstrated that emerging two-dimensional(2D)semiconductors can provide an excellent platform for efficient phonon-assisted upconversion due to the enhanced optical transition strength and phonon-exciton interaction of 2D excitons.However,there is little research on the further enhancement of excitonic upconverted emission in 2D semiconductors.Here,we report the enhanced multiphoton upconverted emission of 2D excitons in doubly resonant plasmonic nanocavities.Owing to the enhanced light collection,enhanced excitation rate,and quantum efficiency enhancement arising from the Purcell effect,an upconverted emission amplification of＞1 000-fold and a decrease of 2～3 orders of magnitude in the saturated excitation power are achieved.These findings pave the way for the development of excitonic upconversion lasing,nanoscopic thermometry,and sensing,revealing the possibility of optical refrigeration in future 2D electronic or excitonic devices.
文献关键词：
中图分类号：
作者姓名：
Pengfei Qi;Yuchen Dai;Yang Luo;Guangyi Tao;Liheng Zheng;Donglin Liu;Tianhao Zhang;Jiadong Zhou;Bo Shen;Feng Lin;Zheng Liu;Zheyu Fang
作者机构：
School of Physics,State Key Laboratory for Mesoscopic Physics,Academy for Advanced Interdisciplinary Studies,Collaborative Innovation Center of Quantum Matter,Nano-optoelectronics Frontier Center of Ministry of Education,Peking University,Beijing 100871,China;Institute of Modern Optics,Nankai University,Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology,Tianjin 300350,China;Photonics Research Center,School of Physics,MOE Key Lab of Weak-Light Nonlinear Photonics,and Tianjin Key Lab of Photonics Materials and Technology for Information Science,Nankai University,Tianjin 300071,China;School of Electrical and Electronic Engineering,Nanyang Technological University,Singapore 639798,Singapore
文献出处：
引用格式：
[1]Pengfei Qi;Yuchen Dai;Yang Luo;Guangyi Tao;Liheng Zheng;Donglin Liu;Tianhao Zhang;Jiadong Zhou;Bo Shen;Feng Lin;Zheng Liu;Zheyu Fang-.Giant excitonic upconverted emission from two-dimensional semiconductor in doubly resonant plasmonic nanocavity)[J].光：科学与应用（英文版）,2022(07):1523-1534
A类：
upconverted
B类：
Giant,excitonic,emission,from,two,dimensional,doubly,resonant,plasmonic,nanocavity,Phonon,assisted,heart,energy,harvesting,bioimaging,optical,cryptography,refrigeration,It,has,been,demonstrated,that,emerging,2D,semiconductors,can,provide,excellent,platform,efficient,phonon,upconversion,due,enhanced,transition,strength,interaction,excitons,However,there,little,research,further,enhancement,Here,report,multiphoton,nanocavities,Owing,light,collection,excitation,quantum,efficiency,arising,Purcell,effect,amplification,fold,decrease,orders,magnitude,saturated,power,are,achieved,These,findings,pave,way,development,lasing,nanoscopic,thermometry,sensing,revealing,possibility,future,electronic,devices
AB值：
0.574713
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