Polarization Selective Color Filter Based on Plasmonic Nanograting Embedded Etalon Structures

Yonghee Jung, Hyunseung Jung, Hyunyong Choi, Hojin Lee

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

In this paper, we propose a polarization-selective color filter that can generate two different color informations simultaneously depending on the polarization direction. The proposed color filter is mainly composed of the etalon structure to generate the color by the structural resonance properties while the upper layer of the etalon is made of plasmonic nanogratings to promote polarization-dependent color properties. When the duty ratio of the silver nanogratings is fixed, the proposed color filter can maintain identical optical properties for orthogonal polarization, while the etalon structure of the proposed color filter can manipulate different color information depending on the cavity height for the horizontal polarization. Finally, we experimentally confirm that polarization-dependent security images can be generated using the proposed color filters with a fixed duty ratio of various nanograting arrays.

Original languageEnglish
Pages (from-to)6344-6350
Number of pages7
JournalNano letters
Volume20
Issue number9
DOIs
Publication statusPublished - 2020 Sept 9

Bibliographical note

Publisher Copyright:
© 2020 American Chemical Society.

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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