Fig. 3
From: Generation of arbitrarily patterned polarizers using 2-photon polymerization
Dichroic LC patterned polarizer. (a) Definition of pitch Pt and linewidth A and representation of an assembled LC cell. (b) Comparison of a set of the 10 patterns of a SU-8 aligned patterned polarizer that defines 10 grayscale levels in LC cells as a function of the alignment angles (φ) with incoming vertical polarization for all patterns. (c) Micrographs of a SU-8 aligned patterned polarizer with the polarization axis of an incident light (P) to the 2PP structures of four patterns with different angles φ. The polyimide rubbing direction of the other substrate (RD) does not affect the transmission of the light with incoming vertical light polarization. (d) Micrograph of the entire pattern employed in the dichroic dye-doped LC cell with chessboard pattern and the 10-step grayscale repeated twice. All micrographs were taken with the patterned polarized backlit with vertically polarized light.
