Light-Matter Interaction in Ultrastable Tunneling Nanogaps.

ABSTRACT: Light emission and detection through tunnel junctions have emerged as a promising platform for studying nanoscale light-matter interactions, including electroluminescence and photoassisted transport. However, controlling these interactions in the tunneling regime has been challenging due to complex underlying mechanisms that remain poorly understood. A major obstacle is the difficulty in forming stable junctions that can function reliably over extended periods. In this study, we fabricate ultrastable tunneling junctions consisting of epitaxial indium-tin-oxide, epitaxial lutetium oxide, and gold. With their stable and consistent tunneling currents, we investigate photon-assisted transport phenomena using simple direct-current detection. Our results demonstrate that optical rectification is

SUBMITTER: Tang Y 

PROVIDER: S-EPMC12333406 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature