Synthetic gain for electron-beam spectroscopy

Autor: Chen, Yongliang, Zeng, Kebo, Xie, Zetao, Sha, Yixin, Chen, Zeling, Zhang, Xudong, Yang, Shu, Gong, Shimeng, Chen, Yiqin, Duan, Huigao, Zhang, Shuang, Yang, Yi

Electron-beam microscopy and spectroscopy featuring atomic-scale spatial resolution have become essential tools used daily in almost all branches of nanoscale science and technology. As a natural supercontinuum source of light, free electrons couple

Externí odkaz: http://arxiv.org/abs/2410.16989

Synthesized complex-frequency excitation for ultrasensitive molecular sensing

Autor: Zeng, Kebo, Wu, Chenchen, Guo, Xiangdong, Guan, Fuxin, Duan, Yu, Zhang, Lauren L, Yang, Xiaoxia, Liu, Na, Dai, Qing, Zhang, Shuang

Detecting trace molecules remains a significant challenge. Surface-enhanced infrared absorption (SEIRA) based on plasmonic nanostructures, particularly graphene, has emerged as a promising approach to enhance sensing sensitivity. While graphene-based

Externí odkaz: http://arxiv.org/abs/2307.09117

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Overcoming losses in superlenses with synthetic waves of complex frequency.

Autor: Guan F; New Cornerstone Science Laboratory, Department of Physics, University of Hong Kong, Hong Kong, China., Guo X; New Cornerstone Science Laboratory, Department of Physics, University of Hong Kong, Hong Kong, China.; CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China., Zeng K; New Cornerstone Science Laboratory, Department of Physics, University of Hong Kong, Hong Kong, China., Zhang S; CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China., Nie Z; Department of Mechanical Engineering, University of California, Berkeley, CA 94720, USA., Ma S; New Cornerstone Science Laboratory, Department of Physics, University of Hong Kong, Hong Kong, China., Dai Q; CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China., Pendry J; The Blackett Laboratory, Department of Physics, Imperial College London, SW7 2AZ London, UK., Zhang X; New Cornerstone Science Laboratory, Department of Physics, University of Hong Kong, Hong Kong, China.; Faculty of Science, University of Hong Kong, Hong Kong, China.; Faculty of Engineering, University of Hong Kong, Hong Kong, China., Zhang S; New Cornerstone Science Laboratory, Department of Physics, University of Hong Kong, Hong Kong, China.; Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China.

Publikováno v: Science (New York, N.Y.) [Science] 2023 Aug 18; Vol. 381 (6659), pp. 766-771. Date of Electronic Publication: 2023 Aug 17.