90 citations · 124 across the 7 of their papers we have counts for
7 papers
Recovering lossless propagation of polaritons with synthesized complex frequency excitation
Fuxin Guan, Xiangdong Guo, Shu Zhang +8
Surface plasmon polaritons and phonon polaritons offer a means of surpassing the diffraction limit of conventional optics and facilitate efficient energy storage, local field enhan…
Synthesized complex-frequency excitation for ultrasensitive molecular sensing
Kebo Zeng, Chenchen Wu, Xiangdong Guo +7
Detecting trace molecules remains a significant challenge. Surface-enhanced infrared absorption (SEIRA) based on plasmonic nanostructures, particularly graphene, has emerged as a p…
Electron-infrared phonon coupling in ABC trilayer graphene
Xiaozhou Zan, Xiangdong Guo, Aolin Deng +18
Stacking order plays a crucial role in determining the crystal symmetry and has significant impacts on electronic, optical, magnetic, and topological properties. Electron-phonon co…
Overcoming losses in superlenses with synthetic waves of complex frequency
Fuxin Guan, Kebo Zeng, Zhaoyu Nie +6
Superlenses made of plasmonic materials and metamaterials have been exploited to image features of sub-diffractional scale. However, their intrinsic losses impose a serious restric…
Phonon transition across an isotopic interface
Ning Li, Ruochen Shi, Yifei Li +13
Natural materials usually consist of isotopic mixtures, for which different isotopic ratios can lead to distinct material properties such as thermal conductivity and nucleation pro…
Approaching the Purcell factor limit with whispering-gallery hyperbolic phonon polaritons in hBN nanotubes
Xiangdong Guo, Ning Li, Xiaoxia Yang +9
Enhanced light-matter interaction at the nanoscale is pivotal in the foundation of nonlinear optics, quantum optics, and nanophotonics, which are essential for a vast range of appl…
THz Near-Field Imaging of Extreme Subwavelength Metal Structures
Xinzhong Chen, Xiao Liu, Xiangdong Guo +15
Modern scattering-type scanning near-field optical microscopy (s-SNOM) has become an indispensable tool in material research. However, as the s-SNOM technique marches into the far-…