ABSTRACT Infrared (IR) machine vision systems have advanced significantly in a range of applications, including autonomous driving, security monitoring, and intelligent night vision. Despite advances in optoelectronic memristors by mixed optical and electrical operation, achieving infrared‐specific fully light‐modulated vision systems remains challenging. Here, we demonstrate a plasmonic optoelectronic memristor based on Te nanowires‐Au nanoparticles/ι‐carrageenan film. Localized surface plasmon resonanceassisted optical excitation endows the device with non‐volatile, IR‐programmable conductance states that can be selectively erased by visible light, yielding an all‐photonic write/erase scheme without electrical intervention. Exploiting this reversible photonic plasticity, we construct an IR vision system capable of in‐sensor Boolean logic and motion detection under complete darkness. An optical neural network trained on the reversible conductance dynamics attains 91.4% recognition accuracy for moving objects. This work proposes a fully light‐modulated optoelectronic memristor that may promote the future development of efficient IR machine vision systems.
Bian et al. (Fri,) studied this question.