Thin flexible polariser of Ag-nanoparticle-dispersedfluorinated polyimide

A thin (14.8 µm thick) flexible polariser that can be used at wavelengths between 600 and 900 nm was prepared using silver-nanoparticle-dispersed fluorinated polyimide film. The extinction ratio of the polariser was > 25 dB, and the optical loss for the transmitting polarisation including surface reflection was < 1.3 dB at 850 nm. The optical and mechanical properties were retained after annealing at 150°C for 1 h.