Qing Dai's team was selected as one of the

On January 10, the annual list of "2022 China's Top 10 Social Impact Events in Optics (Light10)" was released. Among them, the team of researcher Qing Dai at the National Center for Nanoscience Technology and his collaborators realized nanoscale light manipulation, which made the list. The research has dramatically improved the precise manipulation of photons, providing an important foundation for designing sub-wavelength nano-optical devices and further realizing on-chip optoelectronic interconnection functions.

Nanoscale optoelectronic fusion is an inevitable trend for future high-performance information devices, and how to precisely manipulate light waves at the atomic scale is one of the most critical scientific issues. To this end, Qing Dai's group and his collaborators constructed a high-quality graphene/alpha-phase molybdenum oxide heterojunction, which realizes the topological transformation of polarized excitations with equal-frequency dispersion profiles, and breaks the bottleneck of the phonon polarized excitation transmission limited by the material's crystallographic orientation. The nano-focusing and diffraction-free channelized transport of polarized excitons was further achieved by using a silica planar lens with a width of only 1.5 μm. This study utilizes polarized excitons to achieve nanoscale light manipulation, which is expected to be applied in many fields such as nanoscale photovoltaic fusion and device integration in the future. The results were published in Nature Nanotechnology, and Professor Min Seok Jang of Korea Advanced Institute of Science and Technology (KAIST) commented in a news and review article that the work breaks through the difficult problem of traditional phonon polarized waves that are limited by the lattice structure and difficult to modulate, and unlocks an important modulation function for polarized waves, which is significant for future applications such as nano-imaging, optical sensing and nanoscale energy manipulation. nanoscale energy manipulation and other applications.

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2022 China's Top 10 Social Impact Events in Optics (Light10) is an annual list launched by Light: Science & Applications, the leading journal of China's Action Plan for Excellence in Science and Technology Journals (APEJ), in collaboration with ScienceNet, the flagship brand of science communication under China Science News. It aims to find those high "light" moments in the field of optics in China, and pay tribute to every scientist who continues to work hard, explore and make breakthroughs in the field of science!