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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 13 — Jun. 28, 2004
  • pp: 2925–2931

Cryptography based on the absorption/emission features of multicolor semiconductor nanocrystal quantum dots

Ming Zhou, Shoude Chang, and Chander P. Grover  »View Author Affiliations


Optics Express, Vol. 12, Issue 13, pp. 2925-2931 (2004)
http://dx.doi.org/10.1364/OPEX.12.002925


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Abstract

Further to the optical coding based on fluorescent semiconductor quantum dots (QDs), a concept of using mixtures of multiple single-color QDs for creating highly secret cryptograms based on their absorption/emission properties was demonstrated. The key to readout of the optical codes is a group of excitation lights with the predetermined wavelengths programmed in a secret manner. The cryptograms can be printed on the surfaces of different objects such as valuable documents for security purposes.

© 2004 Optical Society of America

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(160.2540) Materials : Fluorescent and luminescent materials

ToC Category:
Research Papers

History
Original Manuscript: May 4, 2004
Revised Manuscript: June 4, 2004
Published: June 28, 2004

Citation
Ming Zhou, Shoude Chang, and Chander Grover, "Cryptography based on the absorption/emission features of multicolor semiconductor nanocrystal quantum dots," Opt. Express 12, 2925-2931 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-13-2925


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