Dynamic Stimulus‐Responsive Optical Encoding: Principles, Methods, and Multidimensional Applications

ABSTRACT In the domains of information security and intelligent sensing, optical encoding technology, as an emerging information security measure, demonstrates immense application potential due to its multi‐dimensional information loading capability, rapid processing speed, and robust anti‐interference properties. However, traditional static optical encoding has revealed inherent limitations when addressing emerging application scenarios. Therefore, developing intelligent encoding systems capable of dynamically responding to multiple external stimuli while enabling controllable, reversible changes and reconstruction of optical signals has become a frontier research focus and key breakthrough area. Such systems can fulfill the demands of high‐security anti‐counterfeiting, real‐time environmental sensing, and adaptive information storage and display. This paper provides a systematic review of the latest research advances in dynamically stimulus‐responsive optical encoding technologies. It offers an in‐depth analysis of the classification and principles of electroluminescent, photoluminescent, mechanoluminescent, and thermoluminescent encoding, alongside progress in multimodal encoding approaches across four dimensions: time, wavelength, space, and polarization. Furthermore, the paper introduces innovative applications of dynamic stimulus‐responsive optical encoding in fields such as information storage, biosensing, and anti‐counterfeiting encryption. Finally, it explores the primary technical bottlenecks and challenges currently faced, aiming to chart a course for the future development of high‐performance, practical, intelligent dynamic optical encoding systems.