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

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Holograms, the optical devices to reconstruct pre-designed images, have been evolved dramatically since the advances in todays 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 λ = 632.8 nm to λ = 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 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.

原文???core.languages.en_GB???
主出版物標題Metamaterials
主出版物子標題Fundamentals and Applications 2014
編輯Nikolay I. Zheludev, Nikolay I. Zheludev, Nader Engheta, Mikhail A. Noginov
發行者SPIE
ISBN(電子)9781628411874
DOIs
出版狀態已出版 - 2014
事件Metamaterials: Fundamentals and Applications 2014 - San Diego, United States
持續時間: 17 8月 201421 8月 2014

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
9160
ISSN(列印)0277-786X
ISSN(電子)1996-756X

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???event.eventtypes.event.conference???Metamaterials: Fundamentals and Applications 2014
國家/地區United States
城市San Diego
期間17/08/1421/08/14

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