论文部分内容阅读
编写了N束光干涉形成强度图的程序,并通过运行程序,研究了干涉光束参数对干涉强度图的影响,从而确定了需要优化的干涉光束参数:光束数、偏振角、相移、方位角、极角.运用巴氏系数计算法编写了求图像相似度的程序,并实现了求计算机模拟直接生成的图案(尝试解)与目标图案的相似度的目的.以图像相似度为判据,运用遗传算法对干涉光束参数进行优化,模拟得到特殊的光子晶体结构。运用优化后的干涉光束参数,可以使用激光全息干涉法制备相应的光子晶体结构.该研究解决了在想要使用激光全息干涉法制备特定的光子晶体结构时,但其相应的干涉光束参数未知的问题,在特殊微纳结构制备领域具有非常重要的研究意义.
The procedure of intensity map of N-beam interference was written and the influence of interference beam parameters on the interference intensity map was studied. The parameters of the interference beam that need to be optimized were determined: number of beams, polarization angle, phase shift, azimuth , Polar angle.Using the method of calculating Pasteur’s algorithm to calculate the similarity of images and achieve the purpose of seeking the similarity between the directly generated pattern (try solution) and the target pattern by computer simulation.Under the similarity of images, The genetic algorithm is used to optimize the parameters of the interfering light beam to simulate the special photonic crystal structure. The laser beam holographic interferometry can be used to fabricate the corresponding photonic crystal structure by using the optimized parameters of the interference beam.This study solves the problem that when the laser photonic crystal structure is to be fabricated using laser holographic interferometry, The problem has very important research significance in the field of special preparation of micro / nano structure.