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Vertical Transport of Subwavelength Localized Surface Electromagnetic Modes
Fei Gao, Zhen Gao, Youming Zhang +3
Transport of subwavelength electromagnetic (EM) energy has been achieved through near-field coupling of highly confined surface EM modes supported by plasmonic nanoparticles, in a…
Dynamical Mechanism of Two-Dimensional Plasmon Launching by Swift Electrons
Xiao Lin, Xihang Shi, Fei Gao +8
Launching of surface plasmons by swift electrons has long been utilized in electron-energy-loss spectroscopy (EELS) to investigate plasmonic properties of ultrathin, or two-dimensi…
Caustic graphene plasmons with Kelvin angle
Xihang Shi, Xiao Lin, Fei Gao +3
A century-long argument made by Lord Kelvin that all swimming objects have an effective Mach number of 3, corresponding to the Kelvin angle of 19.5 degree for ship waves, has been…
Probing topological protection using a designer surface plasmon structure
Fei Gao, Zhen Gao, Xihang Shi +9
Topological photonic states, inspired by robust chiral edge states in topological insulators, have recently been demonstrated in a few photonic systems, including an array of coupl…
Topological water wave state in a one-dimensional structure
Zhaoju Yang, Fei Gao, Baile Zhang
Topological concepts have been introduced into electronic, photonic, and phononic systems, but have not been studied in surface-water-wave systems. Here we study a one-dimensional…