Lei Guo

In-Sensor Visible and Mid-Infrared Dual-Band Perception and Computing

Abstract Machine vision in complex environments requires hardware that can integrate multispectral sensing with real-time front-end information processing. Visible light (VIS) and mid-infrared (MIR) signals provide complementary scene information, yet existing photodetectors cann...

Recent Advances in Infrared‐to‐Visible Upconversion Photodetectors: From Multi‐Dimensional Innovations to Future Perspectives

ABSTRACT Thin‐film infrared‐to‐visible upconversion photodetectors (UCDs) have emerged as a cost‐effective, pixel‐less paradigm for infrared (IR) visualization. This review first elucidates mainstream upconversion modalities, device configurations, and the physical principles of...