影响激光全息照相实验成像效果的因素解析

ANALYSIS OF THE FACTORS INFLUENCING THE IMAGING EFFECT OF LASER HOLOGRAPHY

激光全息照相实验是近代物理实验的重要实验之一,实验中的一些因素将影响成像效果,对这些因素作具体分析,有助于提升激光全息照相实验的成像效果。从激光全息照相基本原理出发,结合实验室具体条件,配合直观图解,对物光与参考光的光程差、物光与参考光的夹角、曝光显影定影过程、物光与参考光的强度比、物与全息干版相对位置等因素作了详细分析与解释,给出了最优参数。这些解释和优化参数有效提高了课堂上实验的效率及成像效果,有助于学生更深入地理解激光全息照相实验的原理,提升学生的物理实验技能。

Laser holography is one of the important experiments in modern physics experiments.Some factors in the experiment will affect the imaging effect.A detailed analysis of these factors will help to improve the imaging effect of laser holographic.Starting from the basic principles,combining with the specific conditions of our laboratory and visual illustration,this paper makes a detailed analysis and explanations about the factors,such as the path difference,and the angle between object light and reference light,the process of exposure,development and fixing,the intensity ratio between object light and reference light,the relative position between object and holographic plate.The most optimum parameters are given.These explanations and optimization parameters effectively improve the efficiency and imaging effect of classroom experiments,which helps the students to comprehend the principles of laser holographic more deeply and improve the students' physical experiment skills.