数字全息用于光波衍射传播理论教学研究

数字全息技术是基于传统光学全息原理,借助于光电探测和数字处理技术,通过单次曝光记录和再现物光场的振幅和相位信息,近年来被广泛研究和应用.将数字全息应用于光波衍射传播理论教学中,不仅能够使学生在学习过程中形象、直观的理解光波衍射传播理论,而且能够通过编程计算完成数字全息图的数值再现,锻炼他们的知识运用能力,从而拓宽专业知识面、了解科学的发展前沿.

Study of the digital holography applied to experimental teaching of the principium for the propagation of the object wave

Digital holography is based on the optical holography.The hologram is recorded by CCD and transferred to a computer.The reconstruction is fulfilled digitally in the computer with the simulated reference wave,and the quantitive amplitude and phase information of the whole wave field can be obtained from only a single hologram.Thus the digital holography has many potential applications.The study of the digital holography applied to the experimental teaching of the modulation principium for the propagation of the object wave,not only make the students have the vision and intuitionistic comprehension with the modulation principium for the propagation of the object wave,but also exercise their ability to apply the knowledge through completing the numerical reconstruction of the digital hologram by programming calculation.Furthermor extend their professional knowledge and learn the cutting edge of scientific development.