Metasurface with all-optical tunability for spatially-resolved and multilevel thermal radiation.

ABSTRACT: Manipulating the thermal emission in the infrared (IR) range significantly impacts both fundamental scientific research and various technological applications, including IR thermal camouflage, information encryption, and radiative cooling. While prior research has put forth numerous materials and structures for these objectives, the significant challenge lies in attaining spatially resolved and dynamically multilevel control over their thermal emissions. In this study, a one-step ultrafast laser writing technique is experimentally demonstrated to achieve position-selective control over thermal emission based on the phase-change material Ge₂Sb₂Te₅ (GST). Ultrafast laser writing technique enables direct fabrication and manipulation of laser-induced crystallin

SUBMITTER: Jiao S 

PROVIDER: S-EPMC11636409 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature