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  • Received: Nov. 30, 2018

    Accepted: Feb. 14, 2019

    Posted: Mar. 25, 2019

    Published Online: Mar. 25, 2019

    The Author Email: Chuwen Lan (lanchuwen@bupt.edu.cn)

    DOI: 10.1364/PRJ.7.000457

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    Ke Bi, Daquan Yang, Jia Chen, Qingmin Wang, Hongya Wu, Chuwen Lan, Yuping Yang. Experimental demonstration of ultra-large-scale terahertz all-dielectric metamaterials[J]. Photonics Research, 2019, 7(4): 04000457

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Photonics Research, Vol. 7, Issue 4, 04000457 (2019)

Experimental demonstration of ultra-large-scale terahertz all-dielectric metamaterials

Ke Bi1, Daquan Yang1, Jia Chen1, Qingmin Wang1, Hongya Wu2, Chuwen Lan1,*, and Yuping Yang3

Author Affiliations

  • 1State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 2School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • 3School of Science, Minzu University of China, Beijing 100081, China

Abstract

All-dielectric metamaterials have emerged as a promising platform for low-loss and highly efficient terahertz devices. However, existing fabrication methods have difficulty in achieving a good balance between precision and cost. Here, inspired by the nano-template-assisted self-assembly method, we develop a micro-template-assisted self-assembly (MTAS) method to prepare large-scale, high-precision, and flexible ceramic microsphere all-dielectric metamaterials with an area exceeding 900 cm×900 cm. Free from organic solvents, vacuum, and complex equipment, the MTAS method ensures low-cost and environmentally friendly fabrication. The ceramic microsphere resonators can be readily assembled into nearly arbitrary arrangements and complex aggregates, such as dimers, trimers, quadrumers, and chains. Finally, using the heat-shrinkable substrate and dipole coupling effect, a broadband reflector with a bandwidth of 0.15 THz and a reflection of up to 95% is demonstrated. This work provides a versatile and powerful platform for terahertz all-dielectric metamaterials, with potential to be applied in a wide variety of high-efficiency terahertz devices.

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