| 초록 |
We have fabricated a bilayer dichroic-doped liquid crystal film by uniaxial alignment method and photopolymerization process, which is useful for dichroic color filter, dual mode circular polarizer, and chirality detector. Two kinds of dichroic polymer films that have different absorbing wavelengths are cross-stacked to show various colors and contrasts depending on the polarization direction of incident linear polarized light, which is comparable with the conventional single-layer dichroic dye-doped liquid crystal film that only shows the contrast difference. We believe that our platform can be used in many other multiplex applications including what we have suggested in this study such as multi-color holograms, optical signal encryption, and electrically tunable devices. |
