Fig. 6 | Light: Science & Applications

Fig. 6

From: When quantum dots meet blue phase liquid crystal elastomers: visualized full-color and mechanically-switchable circularly polarized luminescence

Fig. 6

Anti-counterfeiting and information encryption based on QD-BPLCE. a Multi-level anti-counterfeiting pattern displayed at different lighting conditions. b Single QD-BPLCE film for information encryption and decryption. (i) Photographs of QD-BPLCE under 365 nm light with RCPF and LCPF. (ii) Converting the presence and length of CPL signals into Morse code and identifying information: “BP”. c Multiple QD-BPLCE film for information encryption and decryption. (i) Design of the combinational encryption films using G-G-BPLCE, G-R-BPLCE, G-B-BPLCE and P-BPLCE. (ii) Photographs and schematics diagrams of combinational encryption films in various optical states, with the extracted information. (iii) The final information detected under specific decoding rules

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