High spatiotemporal resolved imaging of ultrafast control of nondiffracting surface plasmon polaritons.

ABSTRACT: Nondiffracting Bessel surface plasmon polariton (SPP) beams, which have unique self-healing, non-divergence, and linear transmission properties, have charming applications in plasmonic devices and on-chip interconnection circuits. Here we first realize, to the best of our knowledge, the ultrafast control and imaging of the Bessel SPP pulse on the nano-femto scale in the experiment. We demonstrate ultrafast control of Bessel SPP pulse switching by controlling the instantaneous polarization state of the excitation light. Moreover, this variation process is directly mapped on the nano-femto scale by time-resolved two-color photoemission electron microscopy. The results are well reproduced by the finite-difference time-domain (FDTD) method. The current study of ultrafast control and spatiotemp

SUBMITTER: Hu H 

PROVIDER: S-EPMC11501457 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature