Optical encoding

Conventional data encoding technologies often face limitations in scalability, cost, and complexity, restricting their adaptability in advanced applications. To address these challenges, we developed a novel optical encoding method utilizing structured microtags with fluorescent properties. These microtags integrate precise structural designs and grayscale fluorescence encoding, enabling them to store and retrieve data efficiently. Our approach leverages maskless lithography to fabricate free-floating 3D microstructures with customized morphology and embedded fluorescent patterns. These microtags can be read under specific illumination, ensuring secure and accurate decoding. The grayscale encoding provides higher information density and flexibility by modulating fluorescence intensity across multiple levels. Furthermore, the method is highly scalable and cost-effective, capable of producing large volumes of encoded tags for diverse applications. This innovative technology enables robust data encoding and authentication, applicable in anti-counterfeiting, biomedical research, and secure data management. By combining optical properties with advanced fabrication techniques, it opens new possibilities for efficient and scalable data encoding systems.