On-Chip Metamaterial-Enhanced Mid-Infrared Photodetectors with Built-In Encryption Features.

ABSTRACT: The integration of mid-infrared (MIR) photodetectors with built-in encryption capabilities holds immense promise for advancing secure communications in decentralized networks and compact sensing systems. However, achieving high sensitivity, self-powered operation, and reliable performance at room temperature within a miniaturized form factor remains a formidable challenge, largely due to constraints in MIR light absorption and the intricacies of embedding encryption at the device level. Here, a novel on-chip metamaterial-enhanced, 2D tantalum nickel selenide (Ta₂NiSe₅)-based photodetector, meticulously designed with a custom-engineered plasmonic resonance microstructure to achieve self-powered photodetection in the nanoampere range is unveiled. Gold cross-shaped resonators are demonstrated

SUBMITTER: Hou S 

PROVIDER: S-EPMC11884537 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature