Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect

Taehyun Kim; Eui-Sang Yu; Young-Gyu Bae; Jongsu Lee; In Soo Kim; Seok Chung; Seung-Yeol Lee; Yong-Sang Ryu

doi:10.1038/s41377-020-00413-5

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Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect

Original Articles

- Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect
- Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect
- LSA 2020年9卷第6期页码：1868-1877
- Affiliations：
  
  1.Sensor System Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
  2.Department of Micro/Nano Systems, Korea University, Seoul 02841, Republic of Korea
  3.School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
  4.Nanophotonics Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
  5.School of Mechanical Engineering, Korea University, Seoul 02841, Republic of Korea
- Author bio：
  
  Seung-Yeol Lee (seungyeol@knu.ac.kr)
  Yong-Sang Ryu (ysryu82@kist.re.kr)
- Funds：
- DOI：10.1038/s41377-020-00413-5
  中图分类号：
- 纸质出版日期：2020，
  
  网络出版日期：2020-10-19，
  
  收稿日期：2020-04-13，
  
  修回日期：2020-09-24，
  
  录用日期：2020-09-29
- Accepted：
Scan QR Code
Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect[J]. LSA, 2020,9(6):1868-1877.

Kim, T. et al. Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect. Light: Science & Applications, 9, 1868-1877 (2020).
Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect[J]. LSA, 2020,9(6):1868-1877. DOI： 10.1038/s41377-020-00413-5.

Kim, T. et al. Asymmetric optical camouflage: tuneable reflective colour accompanied by the optical Janus effect. Light: Science & Applications, 9, 1868-1877 (2020). DOI： 10.1038/s41377-020-00413-5.

摘要

Abstract

Going beyond an improved colour gamut

an asymmetric colour contrast

which depends on the viewing direction

and its ability to readily deliver information could create opportunities for a wide range of applications

such as next-generation optical switches

colour displays

and security features in anti-counterfeiting devices. Here

we propose a simple Fabry–Perot etalon architecture capable of generating viewing-direction-sensitive colour contrasts and encrypting pre-inscribed information upon immersion in particular solvents (optical camouflage). Based on the experimental verification of the theoretical modelling

we have discovered a completely new and exotic optical phenomenon involving a tuneable colour switch for viewing-direction-dependent information delivery

which we define as asymmetric optical camouflage.

关键词

Keywords

references

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