Metamaterials for enhanced optical responses and their application to active control of terahertz waves

S Lee, S Baek, TT Kim, H Cho, S Lee… - Advanced …, 2020 - Wiley Online Library
Metamaterials, artificially constructed structures that mimic lattices in natural materials, have
made numerous contributions to the development of unconventional optical devices. With an …

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

J Jung, H Park, J Park, T Chang, J Shin - Nanophotonics, 2020 - degruyter.com
Metamaterials can possess extraordinary properties not readily available in nature. While
most of the early metamaterials had narrow frequency bandwidth of operation, many recent …

Experimental realization of photonic topological insulator in a uniaxial metacrystal waveguide

WJ Chen, SJ Jiang, XD Chen, B Zhu, L Zhou… - Nature …, 2014 - nature.com
Photonic analogue of topological insulator was recently predicted by arranging ε/μ
(permittivity/permeability)-matched bianisotropic metamaterials into two-dimensional …

A terahertz metamaterial with unnaturally high refractive index

M Choi, SH Lee, Y Kim, SB Kang, J Shin, MH Kwak… - Nature, 2011 - nature.com
Controlling the electromagnetic properties of materials, going beyond the limit that is
attainable with naturally existing substances, has become a reality with the advent of …

Experimental realization of three-dimensional indefinite cavities at the nanoscale with anomalous scaling laws

X Yang, J Yao, J Rho, X Yin, X Zhang - Nature Photonics, 2012 - nature.com
Metamaterials allow for extraordinary electromagnetic properties that are not attainable in
nature,,,,,,,,. Indefinite media with hyperbolic dispersion, in particular, have found intriguing …

Highly tunable refractive index visible-light metasurface from block copolymer self-assembly

JY Kim, H Kim, BH Kim, T Chang, J Lim, HM **… - Nature …, 2016 - nature.com
The refractive index of natural transparent materials is limited to 2–3 throughout the visible
wavelength range. Wider controllability of the refractive index is desired for novel optical …

[書籍][B] Handbook of terahertz technologies: devices and applications

HJ Song, T Nagatsuma - 2015 - books.google.com
Terahertz waves, which lie in the frequency range of 0.1-10 THz, have long been
investigated in a few limited fields, such as astronomy, because of a lack of devices for their …

Nanometer-scale heterogeneous interfacial sapphire wafer bonding for enabling plasmonic-enhanced nanofluidic mid-infrared spectroscopy

J Xu, Z Ren, B Dong, X Liu, C Wang, Y Tian, C Lee - ACS nano, 2020 - ACS Publications
As one of the most effective surface-enhanced infrared absorption (SEIRA) techniques,
metal–insulator–metal structured metamaterial perfect absorbers possess an ultrahigh …

Terahertz high and near-zero refractive index metamaterials by double layer metal ring microstructure

L Jiang, B Fang, Z Yan, J Fan, C Qi, J Liu, Y He… - Optics & Laser …, 2020 - Elsevier
We demonstrate the extensive improvement of the effective refractive index of designed
metamaterials through the coupling effect of double layers in terahertz region. It is interesting …

Optical broadband angular selectivity

Y Shen, D Ye, I Celanovic, SG Johnson… - Science, 2014 - science.org
Light selection based purely on the angle of propagation is a long-standing scientific
challenge. In angularly selective systems, however, the transmission of light usually also …