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Proceedings Paper

Polarization controlled colorful images reconstructed by reflective meta-hologram
Author(s): 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
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Paper 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 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 “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.

Paper Details

Date Published: 12 September 2014
PDF: 4 pages
Proc. SPIE 9160, Metamaterials: Fundamentals and Applications 2014, 91602D (12 September 2014); doi: 10.1117/12.2063297
Show Author Affiliations
Yao-Wei Huang, National Taiwan Univ. (Taiwan)
Wei Ting Chen, National Taiwan Univ. (Taiwan)
Kuang-Yu Yang, Research Ctr. for Applied Sciences (Taiwan)
Chih-Ming Wang, National Dong Hwa Univ. (Taiwan)
Pin Chieh Wu, National Taiwan Univ. (Taiwan)
Greg Sun, Univ. of Massachusetts Boston (United States)
Shulin Sun, Fudan Univ. (China)
Lei Zhou, Fudan Univ. (China)
Ai Qun Liu, Nanyang Technological Univ. (Singapore)
Din Ping Tsai, National Taiwan Univ. (Taiwan)
Research Ctr. for Applied Sciences (Taiwan)


Published in SPIE Proceedings Vol. 9160:
Metamaterials: Fundamentals and Applications 2014
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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