Results 241 to 250 of about 157,954 (272)

Active Control of Asymmetric Fano Resonances with Graphene–Silicon‐Integrated Terahertz Metamaterials

Advanced Materials & Technologies, 2020
Planar metamaterials are extensively studied in recent years due to their potential applications in design of flat optical components, ultrasensitive sensors, lasing spasers, and nonlinear devices.
Quan Li, M. Gupta, Xueqian Zhang, Shuang Wang, Tai Chen, Ranjan Singh, Jiaguang Han, Weili Zhang   +7 more
semanticscholar   +1 more source

Flexible terahertz metamaterials: towards a terahertz metamaterial invisible cloak

2008 IEEE International Electron Devices Meeting, 2008
In this work, we present flexible metamaterials on free standing polyimide substrates operating at terahertz (THz) frequencies range. The successful demonstration of THz flexible metamaterials provides a path forward for creating multi-layer non-planar metamaterials such as THz invisible cloak.
null Hu Tao, N. I. Landy, Kebin Fan, A. C. Strikwerda, W. J. Padilla, R. D. Averitt, null Xin Zhang   +6 more
openaire   +1 more source

Eutectic terahertz metamaterials

2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013
We present unique phenomena of enhanced transmission of terahertz (THz) waves through a self-organized eutectic metamaterial1. Our experimental results in combination with theoretical calculations show that the experimentally observed enhanced transmission is associated with sub-wavelength waveguiding within the dielectric rods lattice embedded in an ...
M. Massaouti, A. A. Basharin, M. Kafesaki, M. F. Acosta, R. I. Merino, V. M. Orera, E. M. Economou, C.M. Soukoulis, S. Tzortzakis   +8 more
openaire   +1 more source

Nonlinear terahertz metamaterials

IEEE Photonics Conference 2012, 2012
We present nonlinear effects induced by an intense terahertz field on the transmission response of metamaterial structures fabricated on silicon wafer, as well as ultrafast modulation in the terahertz response of our devices.
I. Al-Naib, G. Sharma, M.M. Dignam, D. G. Cooke, T. Ozaki, R. Morandotti   +5 more
openaire   +1 more source

Self-Powered Terahertz Modulators Based on Metamaterials, Liquid Crystals, and Triboelectric Nanogenerators.

ACS Applied Materials and Interfaces
6G communication mainly occurs in the THz band (0.1-10 THz), which can achieve excellent performance. Self-powered THz modulators are essential for achieving better conduction, modulation, and manipulation of THz waves.
Yijun Hao, Zihao Niu, Jiayi Yang, Meiqi Wang, Haopeng Liu, Yong Qin, Wei Su, Hongke Zhang, Chuguo Zhang, Xiuhan Li   +9 more
semanticscholar   +1 more source

Superconductor Terahertz Metamaterials

International Conference on Ultrafast Phenomena, 2010
We demonstrate THz metamaterials comprised of high temperature superconducting film (YBa2Cu3O7) replacing the metal structure. They exhibit unique properties that are not achievable using metals, which may result in both interesting applications and underlying physics.
Hou-Tong Chen, Hao Yang, Quanxi Jia, Antoinette J. Taylor   +3 more
openaire   +1 more source

Terahertz superconductor metamaterial

Applied Physics Letters, 2010
We characterize the behavior of split ring resonators made up of high transition temperature yttrium barium copper oxide superconductor using terahertz time-domain spectroscopy measurements and numerical simulations. The superconductor metamaterial is found to show a remarkable change in the transmission spectra at the fundamental inductive-capacitive ...
Gu, J., Singh, R., Tian, Z., Cao, W., Xing, Q., He, M., Zhang, J.W., Han, J., Chen, H.-T., Zhang, W.   +9 more
openaire   +1 more source

Active Control and Large Group Delay in Graphene-Based Terahertz Metamaterials

Journal of Physical Chemistry C, 2019
A distinct plasmon-induced transparency (PIT) window has been realized in our novel design of |+|-shaped graphene metamaterials, which consist of two identical graphene strips and a cross-shaped graphene resonator in the right middle.
W. Jia, Peiwen Ren, Y. Jia, Chunzhen Fan
semanticscholar   +1 more source

Dynamic Metamaterials at Terahertz Frequencies

2006 IEEE LEOS Annual Meeting Conference Proceedings, 2006
Metamaterials fabricated for operation at terahertz frequencies are presented.
R. Averitt, H. Chen, A. Taylor, C. Highstrete, Mark Lee, W. Padilla   +5 more
openaire   +1 more source

Polarization insensitive terahertz metamaterial absorber

Optics Letters, 2011
We present the simulation, implementation, and measurement of a polarization insensitive resonant metamaterial absorber in the terahertz region. The device consists of a metal/dielectric-spacer/metal structure allowing us to maximize absorption by varying the dielectric material and thickness and, hence, the effective electrical permittivity and ...
J, Grant, Y, Ma, S, Saha, L B, Lok, A, Khalid, D R S, Cumming   +5 more
openaire   +2 more sources