Work

Superlattice plasmon mode in a grating of two-dimensional electron strips

Year: 2026

Type: article

Abstract: We investigate GaAs/AlGaAs heterostructure membranes with a metasurface made up of a grating of two-dimensional electron system strips. Experiments have revealed a strong plasma resonance in the transmission of the metasurface. We have found that a collective effect from the superlattice, along with lateral screening between the strips, leads to the emergence of a plasmon mode in the metasurface under study. Furthermore, we develop an analytical approach that accurately describes the behavior of the discovered superlattice plasmon mode, providing insights into the fundamental physics of plasmonic metasurface systems.

Source: Physical Review Research

DOI: 10.1103/vp8j-ws4g