High-resolution 1D moirés as counterfeit security features

Victor J Cadarso; Sylvain Chosson; Katrin Sidler; Roger D Hersch; Jürgen Brugger

doi:10.1038/lsa.2013.42

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High-resolution 1D moirés as counterfeit security features

Original Articles

- High-resolution 1D moirés as counterfeit security features
- High-resolution 1D moirés as counterfeit security features
- LSA 2013年2卷第3-4期
- Affiliations：
  
  1.Microsystems laboratory, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
  2.Peripheral Systems Laboratory, EPFL, Lausanne 1015, Switzerland
- Author bio：
  
  Dr VJ Cadarso, EPFL STI IMT LMIS1 Station 17, 1015 Lausanne, Switzerland Email: juergen.brugger@epfl.ch
  Professor Jürgen Brugger, EPFL STI IMT LMIS1 Station 17, 1015 Lausanne, Switzerland Email: juergen.brugger@epfl.ch
- Funds：
- DOI：10.1038/lsa.2013.42
  中图分类号：
- 纸质出版日期：2013-12，
  
  网络出版日期：2013-07-19，
  
  收稿日期：2012-11-19，
  
  修回日期：2013-02-01，
  
  录用日期：2013-03-18
- Accepted：
Scan QR Code
High-resolution 1D moirés as counterfeit security features[J]. LSA, 2013,2(3-4).

Cadarso, V. J et al. High-resolution 1D moirés as counterfeit security features. Light: Science & Applications, 2, e86 (2013).
High-resolution 1D moirés as counterfeit security features[J]. LSA, 2013,2(3-4). DOI： 10.1038/lsa.2013.42.

Cadarso, V. J et al. High-resolution 1D moirés as counterfeit security features. Light: Science & Applications, 2, e86 (2013). DOI： 10.1038/lsa.2013.42.

摘要

Abstract

A moiré is an interference pattern that appears when two different periodic structures are overlaid. The image created is extremely sensitive to small variations in the original layers and is thus very interesting for anti-counterfeit protection. We present a microfabricated 1D moiré enabling complex high-resolution patterns as a significantly improved security feature that cannot be reproduced using standard printing methods. Furthermore

we demonstrate

theoretically and experimentally

that a microscopic deviation from the original design results in a macroscopic variation in the moiré that is clearly visible to the naked eye. The record resolution achieved in the elements fabricated and the increased design freedom

make these high-resolution moirés excellent candidates for a variety of visually appealing security applications.

关键词

Keywords

anti-counterfeitingmicro-optical devicesmoiré effectoptical security

references

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