摘要
提出了一种新的制作双通道计算全息图的方法。通过在一张全息图中同时记录一个物体傅里叶频谱的复共轭信息和另一个物体的傅里叶频谱信息,重新设计计算全息图的抽样单元,使输入的两个平面物体,同时再现在同一衍射级的相同或不同方向上,再现的两个像在空间完全分离开来,从而实现了载波信息的通道变化。该方法已经在实验中得到了印证,文中给出了相应的原理和实验结果。
A new method for making two-channel Computer-generated Holograms （CGH） was proposed in this paper. Sample cell of CGH was designed by recording the complex conjugate information of one object＇s Fourier spectrum and the information of the other object＇s Fourier spectrum on one hologram, and the two plane objects were reconstructed in the same or different direction and same diffraction order simultaneously, and then two reconstructed image separated from each other in the space to realize the channels change of carrier wave communication. The experimental results show the feasibility of this method.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2007年第3期114-117,共4页
Opto-Electronic Engineering
关键词
迂回位相
计算机全息图
傅里叶变换
平面物体
Detour phase
Computer-generated hologram
Fourier transform
Plane object
