全息照相术是一种精密的物理实验。高精度的全息图,要求有良好的激光、优质感光板和高稳定的实验装置。能否用简单设备拍摄较好的全息图呢?我们参考了有关资料,利用简陋条件,已经拍摄了满意的实物全息图。实践证明,在不太好的条件下,利用“土”设备也能拍摄出质量较好的全息图。这对于多组的学生全息照相实验来说更有实际意义。下面仅就我们的简易激光全息照相实验装置和实验过程作一介绍。一、实验设备我们的实验室选择在大楼一端的底层,在水泥地面上放两个大木箱,木箱的带与地面之间垫上厚胶皮。木箱里盛满砂子,砂面高出木箱呈锥形。然后将一块大铁板(长2m、宽1.2m、厚2cm)平压在砂面上,使铁板尽量放平,这就是防震 Holography is a sophisticated physical experiment. High-precision holograms, require a good laser, high-quality light-sensitive plate and high stability of the experimental device. Can we use a simple device to shoot a better hologram it? We refer to the relevant information, the use of simple conditions, has taken a satisfactory physical hologram. Practice has proved that in the not very good conditions, the use of “earth” equipment can also shoot better quality hologram. This is more practical for multi-group student holographic experiments. The following is only an introduction to our simple laser holographic experimental device and experimental process. First, the experimental equipment Our laboratory chose the bottom of one end of the building, put two large wooden boxes on the cement floor, wooden box with a thick pad of rubber between the ground. The wooden box is full of sand, and the sand surface is conical above the wooden box. Then a large iron plate (length 2m, width 1.2m, thickness 2cm) flat on the sand surface, so that the iron plate as much as possible, this is the earthquake