Single-beam data encoding using a holographic angular multiplexing technique

被引：6

作者：

Jia, Wei ^{[1
,2
]}

Chen, Zhongyu ^{[1
]}

Wen, Fung Jacky ^{[1
]}

Zhou, Changhe ^{[2
]}

Chow, Yuk Tak ^{[1
]}

Chung, Po Sheun ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

[2] Acad Sinica, Shanghai Inst Opt & Fine Mech, Informat Opt Lab, Shanghai 201800, Peoples R China

来源：

APPLIED OPTICS | 2011年 / 50卷 / 34期

关键词：

SPATIAL LIGHT-MODULATOR; VOLUME HOLOGRAMS; STORAGE-SYSTEM; MICROSCOPY; GENERATION; APERTURE; ANGLE; TIME;

D O I：

10.1364/AO.50.000H30

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a novel configuration for angular multiplexing holographic encoding in which the signal beam and the reference beam are combined into a single beam. By using a spatial light modulator based on twisted nematic liquid crystals, the signal and the reference beams are modulated in amplitude mode and phase mode, respectively. The multiplexed interference patterns with the reference beams of different incident angles are recorded near the Fourier transform plane, and then the signals are selectively reconstructed by the corresponding reference beam. Both the simulation and the experiment of single-beam angular multiplexed holography are performed with consistent results. Compared with the traditional angular multiplexing holographic recording system, the single-beam configuration is more compact, easier to adjust, and less sensitive to the vibration of the environment. Therefore, it will be more attractive for potential applications in many fields, such as high-density signal recording and data encryption. (C) 2011 Optical Society of America

引用

页码：H30 / H35

页数：6

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