2021 International Conference on Precision Instruments and Optical Engineering
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Assoc. Prof. Xianguang Yang

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Assoc. Prof. Xianguang YangLink )

Guest Editor of Frontiers in Materials, Institute of Nanophotonics, Jinan University


Brief introduction:

Dr. Xianguang Yang received his Bachelor’s degree in Optics from Sun Yat-Sen University (SYSU) in 2012, and completed his Doctorate in Optical Engineering with the theoretical and experimental combination of nanowire and nanoparticle photonics at the State Key Laboratory of Optoelectronic Materials and Technologies affiliated with SYSU in 2016 under the guidance of Prof. Baojun Li (Changjiang Scholar). He received National Postgraduate Scholarship in 2016. He became an Assistant Professor of the Institute of Nanophotonics at the Jinan University in 2016 and became an Assistant to the Dean since 2018, then promoted to Associate Professor in 2019. He has mentored 3 MS students. His main research interests include photonics, plasmonics, nano-optics, detectors, optoelectronics, which were supported by the National Natural Science Foundation of China (NSFC). Dr. Yang has published 1 chapter of Book PLASMONICS, and 20 peer-reviewed journal publications, such as ACS Nano, ACS Photonics, Nanophotonics, Nanoscale, and etc. He has been an Editorial Board Member of Optics in 2018 and to be a member for RSC Advances Reviewer Panel since 2020. He is a member of American Chemical Society (ACS), Optical Society of America (OSA), Chinese Optical Society (COS), Guest Editor of Frontiers in Materials and Chinese Society for Optical Engineering (CSOE).


Title:Optical Properties and Lasing Physics in Flexible Fibers Doped with Nanocrystals

Abstract:Functional nanomaterials can be doped or embedded into one-dimensial flexible polymer fibers, such as dye molecules, semiconductor quantum dots, Rare earth luminescent ions, and upconversion nanoparticles etc., realizing the functionalization of optical properties and physical effects in nanofibers. Recently, perovskite nanocrystals show excellent photoelectric properties and potential applications in micro-nano photoelectric devices such as photovoltaic cells, nano lasers and light-emitting diodes. Therefore, on the basis of our previous research on flexible optical waveguide and optical detection, this project plans to dope perovskite nanocrystals into polymer nanofibers, obtaining the functional flexible fiber to assemble optical micro-cavity by micro-nano manipulation, and then investigating the optical properties and lasing mechanism of functional flexible fibers and micro-cavity, finally developing new type of nanofiber laser device with threshold down to 100 nJ/cm^2. The research contents include: luminescent characteristics, optical waveguide characteristics, laser emission mechanism and prototype device research. These studies will provide new approaches and early foundations for the development of fiber optics and integrated optics at micro-nano scale.