TITLE

DUAL-BAND TERAHERTZ CHIRAL METAMATERIAL WITH GIANT OPTICAL ACTIVITY AND NEGATIVE REFRACTIVE INDEX BASED ON CROSS-WIRE STRUCURE

AUTHOR(S)
Fang Fang; Yongzhi Cheng
PUB. DATE
July 2013
SOURCE
Progress in Electromagnetics Research M;2013, Vol. 31, p59
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper, a dualband chiral metamaterial (CMM) based on cross-wire structure is proposed and studied numerically. It exhibits dual-band giant optical activity and negative refractive index in terahertz region. The surface current distributions are calculated to explain original physics. The further numerical results show that the effective frequency bands of the CMMs can be independent adjusted easily by changing the structure geometrical parameter. The designed dual-band terahertz CMMs offer flexibility in the investigation of novel terahertz device application.
ACCESSION #
89523682

 

Related Articles

  • Diffraction of a cylindrical wave by a perfectly conducting cylinder enclosed in a metamaterial shell with a negative refractive index. Anyutin, A. // Journal of Communications Technology & Electronics;Jan2014, Vol. 59 Issue 1, p31 

    The problem of diffraction of a plane (cylindrical) wave by a perfectly conducting cylinder enclosed in a metamaterial shell is rigorously solved. The influence of the geometric dimensions of the shell, the value of the negative refractive index of the metamaterial medium, and the position of a...

  • Magnetic Response of Metamaterials. Juárez‐reyes, Lucila; Mochán, W. Luis // Physica Status Solidi (B);Apr2018, Vol. 255 Issue 4, p1 

    We present a general numerical approach for the calculation of the non‐local macroscopic dielectric response of a binary metamaterial made of arbitrary non‐magnetic materials with any geometry. From the spatial dispersion of the permittivity, characterized by its dependence on the...

  • A low-reflection coaxial tunable attenuator based on zero refractive index metamaterial. Kai-Lun Zhang; Zhi-Ling Hou; Chan-Yuan Wang; Ling-Bao Kong; Xin-Ming Bian // Journal of Applied Physics;2016, Vol. 120 Issue 18, p183102-1 

    In this paper, we design a low-reflection coaxial tunable attenuator with a maximum attenuation of -50 dB by use of zero refractive index metamaterial. Almost no reflection is observed from input port of the proposed structure, due to the easily accessible impedance matching derived from the use...

  • Numerical analysis of the terahertz multilayer metamaterials. Chao Su; Xiaoyong He; Rui Li; Genwang Cai; Zhiqin Fan; Shijian Wang // Modern Physics Letters B;5/20/2014, Vol. 28 Issue 12, p1 

    On the basis of transfer matrix method (TMM), the effective medium theories (EMT) which can be applied to the n-layer unit cell structures have been developed. By using this method, we have systematically investigated the influences of the structure parameters, operation frequency, and material...

  • ELECTROMAGNETIC RESPONSE OF A CIRCULAR DB CYLINDER IN THE PRESENCE OF CHIRAL AND CHIRAL NIHILITY METAMATERIALS. Khalid, M.; Ahmed, S.; Syed, A. A.; Naqvi, Q. A. // Progress in Electromagnetics Research M;Dec2011, Vol. 21, p253 

    Scattering of electromagnetic plane wave from an infinitely long circular DB cylinder placed in chiral and chiral nihility metamaterials is studied, and the results are compared with that of scattering from DB cylinder placed in free space. The discussion is further extended by considering...

  • Dielectric Properties of DMSO‐Doped‐PEDOT:PSS at THz Frequencies. Du, Yan; Cui, Xuan; Li, Li; Tian, Hao; Yu, Wen‐xiu; Zhou, Zhong‐xiang // Physica Status Solidi (B);Apr2018, Vol. 255 Issue 4, p1 

    Poly(3,4‐ethylenedioxythiophene):poly(4‐styrenesulfonate) (PEDOT:PSS) is a promising candidate for terahertz (THz) metamaterial devices. Its dielectric properties can be changed by the dopant dimethylsulfoxide (DMSO). In this study, the dielectric properties of...

  • Distributed feedback terahertz frequency quantum cascade lasers with dual periodicity gratings. Castellano, F.; Zanotto, S.; Li, L. H.; Pitanti, A.; Tredicucci, A.; Linfield, E. H.; Davies, A. G.; Vitiello, M. S. // Applied Physics Letters;1/1/2015, Vol. 106 Issue 1, p1 

    We have developed terahertz frequency quantum cascade lasers that exploit a double-periodicity distributed feedback grating to control the emission frequency and the output beam direction independently. The spatial refractive index modulation of the gratings necessary to provide optical feedback...

  • Realization of a Dual Transmission Band Conjugate Omega Shaped Metamaterial. Panda, Asit K.; Mohanty, Ashutosh // International Journal of Computer Science Issues (IJCSI);Nov2011, Vol. 8 Issue 6, p175 

    In this article we propose a new conjugate omega shaped structure for realization of left hand material. This new metamaterial (MTM) is designed and simulated using CST MWS. The effective permittivity & permeability are extracted from the transmission & reflection data obtained by normal...

  • Sensitivity of Double-Negative Metamaterial Optical Sensor. El-Khozondar, Hala J.; Müller, Mathias; El-Khozondar, Rifa J.; Shabat, Mohammed M.; Koch, Alexander W. // International Journal of Pure & Applied Sciences & Technology;Aug2012, Vol. 11 Issue 2, p29 

    Optical sensors have wide range of application such as in medicine, astronomy, industry, and others. Sensitivity of symmetric three layered optical waveguide sensor is investigated. The proposed sensor consists of dielectric slab surrounded by metamaterial (MTM) cladding and MTM substrate. MTMs...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics