Real-time holography using the high-resolution LCTV-SLM

Real-time holography using the high-resolution LCTV-SLM
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使用高分辨率 LCTV-SLM 进行实时全息术

DOI:
10.1117/12.44740
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发表时间:
1991
期刊:
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影响因子:
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通讯作者:
Kohei Kitamura
Kohei Kitamura
中科院分区:
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文献类型:
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作者:
N. Hashimoto;Shigeru Morokawa;Kohei Kitamura

文献摘要

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提出了带有液晶电视空间光模块(LCTV-SLM)的实时全息系统。系统中采用LCTV-SLM作为相位全息器件。在记录时,采用在线全息方法来降低全息图的条纹图案的空间频率。 CCD相机检测条纹图案,条纹图案信号通过视频信号线传输到LCTV-SLM。在重建过程中,LCTV-SLM由He-Ne激光器(633nm)照射,并使用空间滤波技术去除零和高阶衍射光。从而可以实时连续观察真实物体的全息图像。
The real-time holography system with a liquid-crystal television spatial light modular (LCTV- SLM) is presented. In the system, the LCTV-SLM is used as a phase hologram device. On the recording, the in-line holography method is used to reduce the spatial frequency of the fringe pattern of the hologram. The CCD camera detects the fringe pattern, and the fringe-pattern signal is transferred to the LCTV-SLM through the video-signal line. On the reconstruction process, the LCTV-SLM is illuminated by an He-Ne laser (633nm) and the spatial filtering technique is used to remove the zero and the higher-order diffracted light. Thus the holographic image of the real object can be observed continuously in real-time.