Reconfigurable multifunctional metasurfaces employing hybrid phase-change plasmonic architecture.

ABSTRACT: We present a hybrid device platform for creating an electrically reconfigurable metasurface formed by the integration of plasmonic nanostructures with phase-change material germanium antimony telluride (GST). By changing the phase of GST from amorphous to crystalline through Joule heating, a large range of responses from the metasurface can be achieved. Furthermore, by using the intermediate phases of GST, the metasurface can interact with the incident light in both over-coupling and under-coupling regimes, leading to an inherently broadband response. Through a detailed investigation of the nature of the fundamental modes, we demonstrate that changing the crystalline phase of the GST at the pixel-level enables an effective control over the key properties (i.e., amplitude, phase, and polari

SUBMITTER: Abdollahramezani S 

PROVIDER: S-EPMC11501198 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature