Dynamic sub-wavelength encryption

Vardit Eckhouse, Zeev Zalevsky*, David Mendlovic

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


The suggested device includes a spatial light modulator (SLM) allowing varying the polarization state of an input illumination source. Attached to the SLM a sub wavelength grating is placed per each pixel of the device. This grating is used to encode the input information. The decoding is done by another sub wavelength grating. When the two gratings are attached a variation of the energetic efficiency between the two polarization states occurs. The polarization ratio encrypts the spatial information stream. The sub wavelength grating are hard to copy and thus high encryption capability is obtained.

Original languageEnglish
Pages (from-to)293-300
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2002
EventMathematics of Data/Image Coding, Compression, and Encryption V, with Applications - Seattle, WA, United States
Duration: 9 Jul 200210 Jul 2002


  • Encryption
  • Sub wavelength
  • Super resolution


Dive into the research topics of 'Dynamic sub-wavelength encryption'. Together they form a unique fingerprint.

Cite this