Polarization controlled colorful images reconstructed by reflective meta-hologram

Yao-Wei Huang*, Wei Ting Chen, Kuang-Yu Yang, Chih-Ming Wang, Pin Chieh Wu, Greg Sun, Shulin Sun, Lei Zhou, Ai Qun Liu, Din Ping Tsai

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Holograms, the optical devices to reconstruct pre-designed images, have been evolved dramatically since the advances in today's nanotechnology [1-4]. Metamaterials, the sub-wavelength artificial structures with tailored refraction index, enable us to design the meta-hologram working in arbitrary frequency region. Here we demonstrated the first reflective type, dual image and high efficient meta-hologram with the incident angle as well as the coherence of incident wave insensitivity in visible region at least from lambda = 632.8 nm to lambda = 850 nm. The meta-hologram is composed of 50-nm-thick gold cross nano-antenna coupled with 130-nm-thick gold mirror with a 50-nm-thick MgF2 as spacer. It shows different images "RCAS" and "NTU" with high image contract under x-and y-polarized illumination, respectively. Making use of the characteristic of meta-materials, these optical properties of proposed meta-hologram can be transferred to arbitrary electromagnetic region by scale-up the size of the unit cell of meta-hologram, leading to more compact, efficient and promising electromagnetic components.

Original languageEnglish
Title of host publicationMETAMATERIALS: FUNDAMENTALS AND APPLICATIONS 2014
EditorsN Engheta, MA Noginov, NI Zheludev
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Pages1-4
Number of pages4
DOIs
StatePublished - 17 Aug 2014
EventConference on Metamaterials - Fundamentals and Applications - San Diego, Canada
Duration: 17 Aug 201421 Aug 2014

Publication series

NameProceedings of SPIE
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume9160
ISSN (Print)0277-786X

Conference

ConferenceConference on Metamaterials - Fundamentals and Applications
CountryCanada
CitySan Diego
Period17/08/1421/08/14

Keywords

  • Plasmonic metamaterials
  • metasurfaces
  • meta-hologram
  • reflection phase
  • cross nanoantennas
  • polarization-controlled dual images
  • LIGHT
  • CLOAK

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