振动及曝光时间对全息照相实验的影响

激光全息照相实验对实验环境和实验条件要求很高,要成功完成全息照相实验并不容易。影响全息照相实验的因素很多,在确定了参考光与物光的光强比、光程差和夹角后,影响全息照相像品质的重要因素主要是曝光时间和振动。其中,振动又分为激光器固定物体振动和物体固定激光器振动两种情况。实验和分析表明,选择合适的曝光时间,且将被摄物体与载物平台固定在一起,能得到真正高质量的全息图。

Effect of Vibration and Exposure Time on the Quality of Holography

Experiment of laser holography has high requirements for environment and conditions,so it is not easy to be carried out successfully.After setting the appropriate illuminance ratio of object light and reference light,the right interference light angle and the least path length difference of light,exposure time and vibration are two important factors affecting holographic image,to get really high-quality hologram,the appropriate exposure time and the right treatment means are necessary.