Full‐Color High‐Capacity Dynamic Information Encryption Based on Femtosecond Laser‐Induced Forward Transfer

The development of dynamic 3D codes is widely studied, especially for smart information protection and advanced dynamic information encryption. However, it is challenging to fabricate information carriers with full color, dynamic properties under external stimuli, and high capacity, which restricts...

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Bibliographic Details
Published in:Advanced optical materials 2023-09, Vol.11 (17), p.n/a
Main Authors: Liang, Shu‐Yu, Liu, Yue‐Feng, Ji, Zhi‐Kun, Xia, Hong, Sun, Hong‐Bo
Format: Article
Language:English
Subjects:
Color
Decoding
dynamic
femtosecond laser induced forward transfer
Fluorescence
full‐color
high‐capacity
information encryption
Light sources
Materials science
Multilayers
Optics
Quantum dots
Smartphones
Spatial resolution
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Summary:The development of dynamic 3D codes is widely studied, especially for smart information protection and advanced dynamic information encryption. However, it is challenging to fabricate information carriers with full color, dynamic properties under external stimuli, and high capacity, which restricts their applications. Here, microsized dynamic full color fluorescent 3D codes are successfully fabricated using the multilayer‐independent femtosecond laser‐induced forward transfer (FsLIFT) technology, which achieves simultaneous high‐resolution transferring and patterning. The combination and excitation of multilayered quantum dots film with different colors and patterns ensure dynamic information transformation of the 3D codes. Due to the high spatial resolution of the FsLIFT, the minimum line width of the patterns can reach 1.78 µm, which ensures a high capacity for encoding. In addition, the decoding process of the microsized dynamic fluorescent 3D codes only requires smartphones, microscope patches, and portable light sources. Finally, the facile fabrication and decoding process as well as the customizable patterning abilities demonstrate the practical application potential for the advanced dynamic coding. Micro‐sized dynamic full color fluorescent 3D codes are achieved by utilizing a multilayer‐independent femtosecond laser‐induced forward transfer technology, which can achieve high‐resolution transferring and patterning simultaneously. The facile fabrication and decoding process as well as the customizable patterning capabilities demonstrate the practical application potential for advanced dynamic coding.
ISSN:2195-1071
2195-1071
DOI:10.1002/adom.202300308