Results 81 to 90 of about 157,954 (272)

Terahertz Information Metamaterials and Metasurfaces

Leida xuebao, 2018
In this paper, we review the recent developments on information metamaterials, including digital metamaterials, coding metamaterials, and programmable metamaterials; furthermore, we discuss their applications in the terahertz (THz)-frequency region.
Liu Junfeng, Liu Shuo, Fu Xiaojian, Cui Tiejun   +3 more
doaj   +1 more source

Terahertz 3D bulk metamaterials with randomly dispersed split-ring resonators

Nanophotonics, 2022
While optical systems using terahertz wave are expected to achieve beneficial applications, at present, the materials of the optical elements that compose them must be selected from limited choices.
Okatani Taiyu, Sunada Yuto, Hane Kazuhiro, Kanamori Yoshiaki   +3 more
doaj   +1 more source

Customised broadband metamaterial absorbers for arbitrary polarisation

, 2010
This paper shows that customised broadband absorption of electromagnetic waves having arbitrary polarisation is possible by use of lossy cut-wire (CW) metamaterials.
Burokur, Busch, Christos Christopoulos, Dolling, Fang, Govyadinov, Guo, Hiroki Wakatsuchi, Holloway, John Paul, Kern, Kordás, Lai, Luo, Pendry, Pendry, Service, Smith, Soukoulis, Stephen Greedy, Tao, Wen, Zhou, Zhou   +23 more
core   +1 more source

Deep‐Subwavelength Coupling‐Induced Fano Resonances in Symmetric Terahertz Metamaterials

Physica Status Solidi (a), 2019
Fano resonances in metamaterials attract intense attention due to their sharp asymmetric spectral feature and low radiative loss channel. Typically, Fano resonances are excited in metamaterials with broken structural symmetry in a planar configuration ...
S. Karmakar, Sabyasachi Banerjee, Deepak Kumar, Girish Kamble, R. K. Varshney, D. Roy Chowdhury   +5 more
semanticscholar   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

All dielectric metasurface based diffractive neural networks for 1-bit adder

Nanophotonics
Diffractive deep neural networks (D 2 NNs) have brought significant changes in many fields, motivating the development of diverse optical computing components.
Liu Yufei, Chen Weizhu, Wang Xinke, Zhang Yan   +3 more
doaj   +1 more source

Experimental Study on Glass and Polymers: Determining the Optimal Material for Potential Use in Terahertz Technology

IEEE Access, 2020
The optical properties of polymers and glasses useful for terahertz applications are experimentally characterized using terahertz time-domain spectroscopy (THz-TDS). A standard system setup utilizing transmission spectroscopy is used to measure different
Md Saiful Islam, Cristiano M. B. Cordeiro, Md J. Nine, Jakeya Sultana, Alice L. S. Cruz, Alex Dinovitser, Brian Wai-Him Ng, Heike Ebendorff-Heidepriem, Dusan Losic, Derek Abbott   +9 more
doaj   +1 more source

Dual-Function Metasurface for Tunable Selective Absorption

Micromachines, 2022
Metamaterials have become a powerful technique in interdisciplinary research, especially in the field of designing terahertz devices. In this paper, two pairs of different structural units of aluminum–polymer composite metamaterials (APCM) for tunable ...
Jingyu Zhang, Hanbing Yan, Xiaoqing Yang, Haohui Lyu   +3 more
doaj   +1 more source

Loss compensation in Metamaterials through embedding of active transistor based negative differential resistance circuits

, 2012
This paper presents an all-electronic approach for loss compensation in metamaterials. This is achieved by embedding active-transistors based negative differential resistance (NDR) circuits in each unit cell of the metamaterial lattice.
Auzanneau, Boardman, Chen, Craninckx, Dong, Hrabar, Jelinek, Pendry, Pendry, Popa, Ramakrishna, Sameer Sonkusale, Schurig, Shelby, Shrekenhamer, Smith, Soukoulis, Tretyakov, Veselago, Wang, Wangren Xu, Willie J. Padilla, Yuan   +22 more
core   +1 more source

Photo‐Reconfigurable Supercoupling Induced Transparency in On‐Chip Topological Edge State Cavities

Advanced Materials, EarlyView.
A novel supercoupling induced transparency (SIT) is demonstrated in a valley‐Hall photonic crystal. The valley vortices enable the supercoupling between a leaky and a guided topological edge state cavity even across a distance of 4.3 wavelengths, inducing a transparency window with negligible reflection.
Wenhao Wang, Ranjan Singh
wiley   +1 more source