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通过Ｎｄ∶ＹＡＧ偏振脉冲激光辐射聚酰亚胺薄膜， 在其表面制得大面积纳米级周期性微线条， 线条的周期性为２００ ｎｍ ， 线条方向始终平行于偏振激光束电场方向， 线条横截面为圆形或椭圆形柱状结构． 采用偏振反射红外光谱分别在平行与垂直纳米线条的方向上测试聚合物表面分子ＩＲ吸收光谱， 结果发现， １ ７２２和１ ２３１ ｃｍ － １处的吸收有明显的二向色性， 表明微线条内聚合物分子链部分呈现取向排列， 且聚酰亚胺分子链方向与微线条方向垂直
By Nd: YAG polarized laser pulse radiation of polyimide film on the surface of a large area of nanoscale periodic micro-lines, the periodic line 200 nm, the line direction is always parallel to the polarized laser beam electric field direction, the line cross-section For the round or oval columnar structure. The IR spectra of the polymer surface were measured by polarized reflection infrared spectroscopy in the direction of parallel and vertical nanowires. The results showed that the absorption at 1 722 and 1 231 cm - 1 showed obvious dichroism, Polymer molecular chain part of the orientation of alignment, and polyimide molecular chain direction perpendicular to the direction of the micro-lines