Optical image encryption based on diffractive imaging

Wen Chen, Xudong Chen, Colin J.R. Sheppard

Research output: Journal article publicationJournal articleAcademic researchpeer-review

327 Citations (Scopus)


In this Letter, we propose a method for optical image encryption based on diffractive imaging. An optical multiple randomphasemask encoding systemis applied, and one of the phase-onlymasks is selected and laterally translated along a preset direction during the encryption process. For image decryption, a phase retrieval algorithm is proposed to extract a high-quality plaintext. The feasibility and effectiveness of the proposedmethod are demonstrated by numerical results. The proposed method can provide a new strategy instead of conventional interference methods, and it may open up a new research perspective for optical image encryption.
Original languageEnglish
Pages (from-to)3817-3819
Number of pages3
JournalOptics Letters
Issue number22
Publication statusPublished - 15 Nov 2010
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Optical image encryption based on diffractive imaging'. Together they form a unique fingerprint.

Cite this