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Hezhou, China

Zhong M.,Nanjing Normal University | Zhong M.,Hezhou College
Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves | Year: 2014

The transmission, negative refractive index (NRI) and figure of merit (FOM) of metal-dielectric-metal (MDM) sandwiched metamaterial, which is perforated with different length of rectangular holes, are numerically studied. The low-frequency transmission peak and maximum transmission peaks of rectangular hole are red-shifted with the increasing of the length of holes. The NRI and the frequency bandwidth of NRI of the rectangular holes are reduced with the increase of the length of holes. It becomes possible to obtain a higher transmission or NRI of metamaterial by adjusting the length of the rectangular holes on MDM metamaterial arrays. Source


Zhong M.,Nanjing Normal University | Zhong M.,Hezhou College
Chinese Optics Letters | Year: 2013

The transmission and negative refractive index (NRI) of metal-dielectric-metal sandwiched metamaterials perforated with different filling media of holes are numerically studied. Results indicate that filling the appropriate medium in rectangular holes can enhance transmission. The NRI and frequency bandwidth of NRI decrease with increased relative permittivity of the filling medium. A stronger magnetic response that contributes to the dual NRI metamaterials is found. © 2013 Chinese Optics Letters. Source


Zhong M.,Nanjing Normal University | Zhong M.,Hezhou College | Ye Y.-H.,Nanjing Normal University
Chinese Physics B | Year: 2014

Transmission and negative refractive index (NRI) of metal - dielectric - metal (MDM) sandwiched metamaterial perforated with four kinds of shapes of holes are numerically studied. Results indicate that positions of all transmission peaks of these kinds of holes are sensitive to the shape of the hole. Under the same conditions, the circular hole can obtain the maximum NRI and the rectangular hole can obtain the maximum frequency bandwidth of NRI. Moreover, the figure of merit (FOM) of the circular hole is the maximum too. As a result, we can obtain a higher NRI and FOM metamaterial by drilling circular hole arrays on MDM metamaterial. © 2014 Chinese Physical Society and IOP Publishing Ltd. Source


Zhong M.,Nanjing Normal University | Zhong M.,Hezhou College | Han G.-M.,Guilin University of Electronic Technology
Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves | Year: 2016

A periodic multilayer structure with metal and dielectric layers is proposed to obtain a broad stop-band filter. The influence of three factors (the number of the metal layer (n), the metal layer and the dielectric layer) on the stop-band and central frequency of cross ring resonator (CRR) filter has been investigated. Simulated results indicate that the stop-bandwidth can reach to 2.2 THz. Moreover, The stop-band and central frequency can be modulated by selecting appropriate n or dielectric layer, but it is not sensitive to the metal layer. © 2016, Chinese Optical Society. All right reserved. Source


Zhong M.,Nanjing Normal University | Zhong M.,Hezhou College
Chinese Optics Letters | Year: 2014

Transmission and negative refractive index (NRI) of metal-dielectric-metal (MDM) metamaterials perforated with different thickness of dielectric layer are studied. It can be found that transmission peaks of rectangular hole are sensitive to the thickness of the dielectric layer. NRI and the bandwidth of NRI are increased with the increasing of the thickness of dielectric layer. NRI of rectangular hole with the thickness of dielectric layer almost follows a linear law when the thickness of dielectric layer in 2-5 μm. A high NRI of metamateriral can be obtained by adjusting the thickness of the dielectric layer of the rectangular hole on MDM metamateriral arrays. © 2014 Chinese Optics Letters. Source

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