標題: Security optical data storage in Fourier holograms
作者: Su, Wei-Chia
Chen, Yu-Wen
Chen, Yu-Jen
Lin, Shiuan-Huei
Wang, Li-Karn
電子物理學系
Department of Electrophysics
公開日期: 20-Mar-2012
摘要: We have proposed and demonstrated a holographic security storage system that is implemented with a shift multiplexing technique. The security function of this storage system is achieved by using a micro-diffuser (MD) for random phase encoding of the reference beams. The apparatus of random phase encoding in this system offers an additional and flexible function during the recording processes. The system can generate holographic security memory or nonsecurity holographic memory via using the MD or not. The storage capacity and the average signal-to-noise value of the security storage system are 16 bits/mu m(2) and 3.5, respectively. Lateral shifting selectivity in this holographic security storage system is theoretically analyzed and experimentally investigated. (C) 2012 Optical Society of America
URI: http://dx.doi.org/10.1364/AO.51.001297
http://hdl.handle.net/11536/15798
ISSN: 1559-128X
DOI: 10.1364/AO.51.001297
期刊: APPLIED OPTICS
Volume: 51
Issue: 9
起始頁: 1297
結束頁: 1303
Appears in Collections:Articles


Files in This Item:

  1. 000302138100015.pdf