摘要
采用普通液晶投影仪搭建了简易数字全息显示实验系统,并根据惠更斯子光源叠加原理和光路可逆原理给出了液晶片相位调节量计算公式,推导了系统的点扩散函数.实测衍射光斑尺寸与理论计算基本一致,实验表明采用该系统可以方便地获得清晰的小尺寸数字全息图像.
A simple digital holography display system using a conventional liquid crystal projector was constructed. The phase modulation formula was derived according to Huygens theorem and path reversibility. An analytic expression for the point spread function of the system was also obtained. The measured size of the light spot when a single point was displayed coincided well with theoretical predication. The experimental results showed that the system could conveniently generate small digital holographic images.
出处
《物理实验》
2014年第2期6-9,15,共5页
Physics Experimentation
关键词
数字全息显示
液晶投影仪
叠加原理
光路可逆
点扩散函数
digital holography display
liquid crystal projector
superposition theorem
path reversibility
point spread function
