一种简便的测量薄透明体折射率的方法

提出了一种比较巧而简便的测量薄透明体的折射率的方法,即利用同一个楔形盒装入两种样品,一为待测样品,另一为易测折射率的透明液体参照物,将楔形盒置于迈克尔逊干涉仪光路中。利用对比,可较大地简化步骤,减少烦杂计算,从而较快地得到良好结果。用此方法测量了某聚合物分散液晶的折射率,与用其他方法得到的结果相符。实验表明该方法有便于操作、成本低、效率高等优点,对薄透明体或其他材料的折射率测量具有一定的参考实用价值。

A Simple Measurement Method of the Refractive Index of Thin Transparent Materials

A handy and simple method is presented for measuring the refractive index of thin transparent materials. A wedgy box is made to fill with two samples which one is needed to determine the refractive index, and the other one is contrastive liquid to measure the refractive index easily. Put the wedgy box into Michelson interferometer. By use of contrasting we can simplicate steps, reduce the complicated calculation and get optimized results. The refractive index of the PDLC is measured and it is coincident with the results by other methods. The experiments show that this method is easy to operate, low-cost, and effective. For the measure of refractive index of thin transparent materials and other homologous materials, the method certainly has practical value.