16:40 〜 17:00
[LCT3-1(Invited)] Simple Differential Interference Contrast Imaging System by Using Twisted Nematic Liquid Crystal Cells
liquid crystals, differential interference, twisted nematic , lateral shear
Unique lateral shearing properties between ordinary and extraordinary rays appearing in twisted nematic liquid crystal cells are investigated. The small lateral shear is useful for differential interference contrast imaging systems, and a potential of electrically tuning of shear distance and/or bias retardation is demonstrated to optimize the imaging.