National Changhua University of Education Institutional Repository : Item 987654321/18205
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题名: Optical Security Using a Random Binary Phase Code in Volume Holograms
作者: Wang, Bo;Su, Wei-Chia;Sun, Ching-Cherngr;Chang, Jung-Yang
贡献者: 光電科技研究所
关键词: Volume holography;Volume holographic storage;Optical security
日期: 2004-09
上传时间: 2014-04-01T03:56:45Z
出版者: Society of Photo-Optical Instrumentation Engineers
摘要: We propose a novel method for optical security by using a randomly selected binary phase code. The phase code is recorded with holographic volume gratings, and the recording material can be regarded as an optical lock, while the original phase code acts as the key. When an arbitrary phase code is used for decryption, the decryption probability is less than 10–10 when the phase code contains only five rows. The decryption probability decreases dramatically as the row number of the code or the threshold value increases. Furthermore, the security system performs good tolerance for data loss of the key. Both the theory and experiment are demonstrated.
關聯: Optical Engineering, 43(9): 2048-2052
显示于类别:[光電科技研究所] 期刊論文

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