Plasmonic EIT switching in ellipsoid tripod structures

Xu, Hui; Li, Hongjian; Liu, Zhimin; Cao, Guangtao; Wu, Caini; Peng, Xiao

doi:10.1016/j.optmat.2012.10.052

Cited by 15 publications

(4 citation statements)

References 18 publications

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“…Electromagnetically-induced transparency (EIT) is a concept originally observed in atomic physics and arises due to quantum interference, resulting in a narrowband transparency window for light propagating through an originally opaque medium [1,2]. The EIT effect extended to classical optical systems using plasmonic metamaterials leads to new opportunities for many important applications such as slow light modulator [3,4,5,6], high sensitivity sensors [7,8], quantum information processors [9], and plasmonic switches [10,11,12]. Generally speaking, the realization of the EIT effect is usually achieved by two kinds of schemes such as the bright-bright mode coupling [7,12,13,14,15,16] and the bright-dark mode coupling [17,18,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Tunable Metamaterial with Gold and Graphene Split-Ring Resonators and Plasmonically Induced Transparency

Zhan

Hong

2018

Nanomaterials

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In this paper, we propose a metamaterial structure for realizing the electromagnetically induced transparency effect in the MIR region, which consists of a gold split-ring and a graphene split-ring. The simulated results indicate that a single tunable transparency window can be realized in the structure due to the hybridization between the two rings. The transparency window can be tuned individually by the coupling distance and/or the Fermi level of the graphene split-ring via electrostatic gating. These results could find significant applications in nanoscale light control and functional devices operating such as sensors and modulators.

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Section: Introductionmentioning

confidence: 99%

Tunable Metamaterial with Gold and Graphene Split-Ring Resonators and Plasmonically Induced Transparency

Zhan

Hong

2018

Nanomaterials

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“…In these multifarious metasurfaces, electromagnetically induced transparency (EIT) 12 , 13 based on local surface plasmons has generated growing interest owing to the narrow transparent peak within a broader reflection spectrum which results from the coupling effect between the radiative and dark elements in the EIT metasurface. Many applications such as highly sensitive sensing 14 , quantum information 15 , slow light 16 , 17 , and plasmonic resonance switch 18 , 19 have been developed based on EIT over the past years. One of the most significant parameters in EIT is the coupling efficiency, which affects the resonance modes of EIT-like metasurfaces, namely transparency and dip/peak doublet positions and group velocity.…”

Section: Introductionmentioning

confidence: 99%

Liquid-Crystal-Based Electrically Tuned Electromagnetically Induced Transparency Metasurface Switch

Wang

Zhao

et al. 2017

Sci Rep

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In this study, a structure to realize a switchover between two different responses of electromagnetically induced transparency (EIT) was designed and implemented by simulation. Taking advantage of the anisotropy in the structure and the coupling between the radiative and dark elements, a metasurface switch with modulation depth of over 85% between orthogonal polarization incident light illuminations was demonstrated. The key mode switchover between the “on” and “off” states was achieved by electrically changing the dressing light polarization with a liquid crystals layer pre-aligned with a mature technology, without changing the incident light and an expected and reversible transition from an EIT-like spectrum to a strong spectral dip was observed. The modulation in the EIT switch fabricated with the proposed straightforward approach is a promising tool to control the groping velocity delay.

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“…Unfortunately, the EIT performance is strictly limited by the experimental conditions such as cryogenic temperatures, coherent pumping and high intensities. Recently, the analogy of EIT-like behavior in metal plasmonic metamaterial in normal environment is relatively attractive due to its outstanding applications by controlling its group velocity in slow-light devices [3][4][5], active plasmonic switch [6,7], and biological and chemical sensing [8][9][10]. Unlike EIT in atomic system, plasmonic EIT property in metamaterial can be tuned simply by adjusting its geometry and integrating into nanoplasmonic circuits without external pumping.…”

Section: Introductionmentioning

confidence: 99%

A novel planar metamaterial design for electromagnetically induced transparency and slow light

Wang¹,

Yuan²,

Fan³

et al. 2013

Opt. Express

151

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A novel planar plasmonic metamaterial for electromagnetically induced transparency and slow light characteristic is presented in this paper, which consists of nanoring and nanorod compound structures. Two bright modes in the metamaterial are induced by the electric dipole resonance inside nanoring and nanorod, respectively. The coupling between two bright modes introduces transparency window and large group index. By adjusting the geometric parameters of metamaterial structure, the transmittance of EIT window at 385 THz is about 60%, and the corresponding group index and Q factor can reach up to 1.2 × 10³ and 97, respectively, which has an important application in slow-light device, active plasmonic switch, SERS and optical sensing.

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Plasmonic EIT switching in ellipsoid tripod structures

Cited by 15 publications

References 18 publications

Tunable Metamaterial with Gold and Graphene Split-Ring Resonators and Plasmonically Induced Transparency

Tunable Metamaterial with Gold and Graphene Split-Ring Resonators and Plasmonically Induced Transparency

Liquid-Crystal-Based Electrically Tuned Electromagnetically Induced Transparency Metasurface Switch

A novel planar metamaterial design for electromagnetically induced transparency and slow light

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