Bi-funtional resonance effects of plasmon-induced transparency and Fano-like response using an asymmetry metamaterial resonator consisting of three metallic strips at terahertz frequency

Abstract Bi-functional metamaterial resonance device operated at terahertz frequency is designed in this paper. It is composed of three metallic strips, in which two parallel metallic strips having the identical dimensions are arranged in the longitudinal direction, and a single metallic strip deviated from the center position is arranged in the horizontal direction. Bi-functional resonance effects of plasmon-induced transparency (PIT) and Fano-like response are simultaneously obtained in this simple metamaterial structure. The formation mechanisms of the two resonance effects are analyzed with the aid of the near-field distributions and the dependence of structure parameters on the whole resonance performance. Results further show that the metallic strip placed horizontally plays an important role in adjusting the resonance response of the metamaterial resonator. More importantly, when the deviation value of the metallic strip in the horizontal direction exceeds a certain amount, for example 10 μm, the metamaterial resonator can realize the effective regulation from bi-functional resonance to single-functional PIT effect. Our proposed structure can be used as valuable platform for ideas to inspire the design of novel electro-optic devices.

Download Full-text

Near-field coupling derived plasmon-induced transparency and Fano dip in symmetry-broken terahertz metamaterials by the “sketch and peel” lithography process

Microelectronic Engineering ◽

10.1016/j.mee.2019.111155 ◽

2020 ◽

Vol 220 ◽

pp. 111155 ◽

Cited By ~ 1

Author(s):

Xupeng Zhu ◽

Shi Zhang ◽

Yiqin Chen ◽

Huimin Shi ◽

Junhu Zhou ◽

...

Keyword(s):

Near Field ◽

Field Coupling ◽

Lithography Process ◽

Induced Transparency ◽

Terahertz Metamaterials ◽

Plasmon Induced Transparency

Download Full-text

Plasmon-induced transparency in metamaterials: Active near field coupling between bright superconducting and dark metallic mode resonators

Applied Physics Letters ◽

10.1063/1.4819389 ◽

2013 ◽

Vol 103 (10) ◽

pp. 101106 ◽

Cited By ~ 138

Author(s):

Wei Cao ◽

Ranjan Singh ◽

Caihong Zhang ◽

Jiaguang Han ◽

Masayoshi Tonouchi ◽

...

Keyword(s):

Near Field ◽

Field Coupling ◽

Induced Transparency ◽

Plasmon Induced Transparency

Download Full-text

Robust tunable plasmon induced transparency in coupled-resonance finite array of metasurface nanostructure

Scientific Reports ◽

10.1038/s41598-020-78795-0 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Jie-Tao Liu ◽

Zhi Liu

Keyword(s):

Optical Transmission ◽

Near Field ◽

Real Space ◽

Far Field ◽

Geometrical Imperfections ◽

Explicit Analysis ◽

Field Radiation ◽

Induced Transparency ◽

Transmission And Reflection ◽

Plasmon Induced Transparency

AbstractRobust and dynamically polarization-controlled tunable plasmon induced transparency (PIT) resonance in designed finite-array nanostructures metasurface is demonstrated, where sharp resonance is guaranteed by design and protected against large geometrical imperfections even for micro-zone sub-array. By employing the explicit analysis of near-field characteristic in the reciprocal-space based on the momentum matching, and the far-field radiation features with point-scattering approach in real-space sparked from Huygens’s principles, the physics of interference resonance for plane-wave optical transmission and reflection of the metasurface is theoretically and thoroughly investigated. The distinctive polarization-selective and Q-tunable PIT shows robust features to performance degradations in traditional PIT system caused by inadvertent fabrication flaws or geometry asymmetry-variations, which paves way for the development of reconfigurable and flexible metasurface and, additionally, opens new avenues in robust and multifunctional controllable nanophotonics device design and applications.

Download Full-text

Hybrid Metal Graphene-Based Tunable Plasmon-Induced Transparency in Terahertz Metasurface

Nanomaterials ◽

10.3390/nano9030385 ◽

2019 ◽

Vol 9 (3) ◽

pp. 385 ◽

Cited By ~ 11

Author(s):

Xianjun Wang ◽

Hongyun Meng ◽

Shuying Deng ◽

Chaode Lao ◽

Zhongchao Wei ◽

...

Keyword(s):

Near Field ◽

Contrast Ratio ◽

Polarization Vector ◽

Ring Resonators ◽

Periodic Lattice ◽

Destructive Interference ◽

Dark Mode ◽

Practical Applications ◽

Induced Transparency ◽

Plasmon Induced Transparency

In this paper, we look at the work of a classical plasmon-induced transparency (PIT) based on metasurface, including a periodic lattice with a cut wire (CW) and a pair of symmetry split ring resonators (SSR). Destructive interference of the ‘bright-dark’ mode originated from the CW and a pair of SSRs and resulted in a pronounced transparency peak at 1.148 THz, with 85% spectral contrast ratio. In the simulation, the effects of the relative distance between the CW and the SSR pair resonator, as well as the vertical distance of the split gap, on the coupling strength of the PIT effect, have been investigated. Furthermore, we introduce a continuous graphene strip monolayer into the metamaterial and by manipulating the Fermi level of the graphene we see a complete modulation of the amplitude and line shape of the PIT transparency peak. The near-field couplings in the relative mode resonators are quantitatively understood by coupled harmonic oscillator model, which indicates that the modulation of the PIT effect result from the variation of the damping rate in the dark mode. The transmitted electric field distributions with polarization vector clearly confirmed this conclusion. Finally, a group delay t g of 5.4 ps within the transparency window is achieved. We believe that this design has practical applications in terahertz (THz) functional devices and slow light devices.

Download Full-text

Mapping the near-field dynamics in plasmon-induced transparency

Physical Review B ◽

10.1103/physrevb.86.155148 ◽

2012 ◽

Vol 86 (15) ◽

Cited By ~ 35

Author(s):

Ziliang Ye ◽

Shuang Zhang ◽

Yuan Wang ◽

Yong-Shik Park ◽

Thomas Zentgraf ◽

...

Keyword(s):

Near Field ◽

Induced Transparency ◽

Plasmon Induced Transparency

Download Full-text

Magnetic plasmon induced transparency in three-dimensional metamolecules

Nanophotonics ◽

10.1515/nanoph-2012-0019 ◽

2012 ◽

Vol 1 (2) ◽

pp. 131-138 ◽

Cited By ~ 50

Author(s):

Pin Chieh Wu ◽

Wei Ting Chen ◽

Kuang-Yu Yang ◽

Chih Ting Hsiao ◽

Greg Sun ◽

...

Keyword(s):

Quantum Interference ◽

Near Field ◽

Three Dimensional ◽

Electric Quadrupole ◽

Destructive Interference ◽

Discrete State ◽

Continuous State ◽

Magnetic Plasmon ◽

Induced Transparency ◽

Plasmon Induced Transparency

AbstractIn a laser-driven atomic quantum system, a continuous state couples to a discrete state resulting in quantum interference that provides a transmission peak within a broad absorption profile the so-called electromagnetically induced transparency (EIT). In the field of plasmonic metamaterials, the sub-wavelength metallic structures play a role similar to atoms in nature. The interference of their near-field coupling at plasmonic resonance leads to a plasmon induced transparency (PIT) that is analogous to the EIT of atomic systems. A sensitive control of the PIT is crucial to a range of potential applications such as slowing light and biosensor. So far, the PIT phenomena often arise from the electric resonance, such as an electric dipole state coupled to an electric quadrupole state. Here we report the first three-dimensional photonic metamaterial consisting of an array of erected U-shape plasmonic gold nanostructures that exhibits PIT phenomenon with magnetic dipolar interaction between magnetic metamolecules. We further demonstrate using a numerical simulation that the coupling between the different excited pathways at an intermediate resonant wavelength allows for a π phase shift resulting in a destructive interference. A classical RLC circuit was also proposed to explain the coupling effects between the bright and dark modes of EIT-like electromagnetic spectra. This work paves a promising approach to achieve magnetic plasmon devices.

Download Full-text