Transparent and Flexible Photon Sieve Made with Cellulose Nanofiber by Micro-Nano Structure Molding

Conventionally, the photon sieve (PS) was made of chrome-coated fused silica and quartz plates. However, plates have a size limitation due to their weight fragility. A membrane PS is attractive since it lightweight, large size, flexibility deployable. This paper demonstrates new concept based on cellulose nanofiber (CNF). The CNF-based (CNF-PS) transparent, flexible, has high strength toughness. study highlights fabrication CNF film using micro-nano structure molding technique its structural stability in an external environmental change. For first time literature, through vacuum (5 × 10–8 Torr) environment test, shown that emerged as promising optical material. Furthermore, prepared CNF-PS exhibited beam quality. explained complete research strategy from isolation nanofibers application. will accelerate broad application thin compact photonic devices.