Gorkhali Suraj P, Cloutier Sylvain G, Crawford Gregory P
Division of Engineering, Brown University, Providence, Rhode Island 02912, USA.
Opt Lett. 2006 Nov 15;31(22):3336-8. doi: 10.1364/ol.31.003336.
A 2D, square lattice, vectorial photonic crystal is formed by vectorial holography using an azo-dye-doped liquid-crystal material. Four coherent beams are interfered to generate a highly stable, switchable polarization holography structure. The formation of the vectorial lattice by the liquid-crystal molecular orientation is confirmed by diffraction pattern and polarization microscopy analysis. Simulations of the alignment and diffraction pattern are in good agreement with the experimental results. Polarization sensitive diffraction behavior is also consistent with the Kakichashvili model.
通过使用偶氮染料掺杂的液晶材料进行矢量全息术，形成了二维方形晶格矢量光子晶体。四束相干光束相互干涉，以产生高度稳定、可切换的偏振全息结构。通过衍射图案和偏振显微镜分析证实了由液晶分子取向形成的矢量晶格。取向和衍射图案的模拟结果与实验结果吻合良好。偏振敏感衍射行为也与卡基查什维利模型一致。
