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About

Anhu Li is a leading figure in precision optical engineering, whose work centers on beam steering, visual tracking, and advanced metrology. His primary research focus is the development and application of Risley prism systems—compact, high-accuracy refractive devices used for laser steering and dynamic field-of-view control. Li’s most significant contribution is his pioneering solution to the notoriously difficult inverse problem for Risley prism scanners, detailed in his highly cited 2015 paper (57 citations). By combining an inverse solution with iterative forward refinement, he provided a robust method for determining precise prism orientations, a breakthrough that has enabled more reliable beam pointing in real-world systems. He has further extended this technology into robotics and non-cooperative measurement, developing a Risley-prism-based visual tracing method for robot guidance and a flexible multistation system for 6DOF pose measurement (each with 11 citations). His forward-looking work on rotating Risley prisms for space-optics applications (2025) underscores their potential in satellite laser communications and autonomous navigation. With a career defined by solving complex optical challenges, Li’s research continues to shape the future of precision sensing and steering.