Abstract
An information-encryption method based on computer-generated hologram (CGH) interference is presented. In this method the original information is decomposed into two parts, and then each part is encoded on a separate CGH. When these two encoded CGHs are aligned and illuminated, a combined interference pattern is formed. The original information is obtained from this pattern. It is impossible to decrypt the original information from one CGH alone; two matched CGHs must be put together to make it available.
© 2001 Optical Society of America
Full Article | PDF ArticleMore Like This
Dezhao Kong, Liangcai Cao, Guofan Jin, and Bahram Javidi
Appl. Opt. 55(29) 8296-8300 (2016)
Mei-Lan Piao, Shi-Gang Wang, Yan Zhao, Jian Wei, Yu Zhao, and Nam Kim
Appl. Opt. 58(36) 9921-9930 (2019)
Sixing Xi, Xiaolei Wang, Lipei Song, Zhuqing Zhu, Bowen Zhu, Shuai Huang, Nana Yu, and Huaying Wang
Opt. Express 25(7) 8212-8222 (2017)