Electromagnetically induced transparency and slow light in an array of metallic nanoparticles

Yannopapas, Vassilios; Paspalakis, Emmanuel; Vitanov, Nikolay V.

doi:10.1103/physrevb.80.035104

Cited by 186 publications

(92 citation statements)

References 48 publications

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“…Such a metamaterial version with EIT feature is considered as a plasmonic analogue of the EIT phenomenon in atomic physics. From the quantum point of view, 5,6 it happens when the excitation pathway |0>-|1> interferes destructively with another pathway |0>-|1>-|2>-|1>, where |0>-|1> means a dipole-allowed transition (bright mode) from the ground state |0> to the excitation state |1>, whereas direct transition |0>-|2> is forbidden (dark mode).…”

mentioning

confidence: 99%

Enhanced sensing performance by the plasmonic analog of electromagnetically induced transparency in active metamaterials

Dong

Liu

Cao

et al. 2010

Applied Physics Letters

228

100

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This work is published at "Appl. Phys. Lett. 97, 114101 (2010)"The gain-assisted plasmonic analogue of electromagnetically induced transparency (EIT) in a metallic metamaterial is investigated for the purpose to enhance the sensing performance of the EIT-like plasmonic structure. The structure is composed of three bars in one unit, two of which are parallel to each other (dark quadrupolar element) but perpendicular to the third bar (bright dipolar element), The results show that, in addition to the high sensitivity to the refractive-index fluctuation of the surrounding medium, the figure of merit for such active EIT-like metamaterials can be greatly enhanced, which is attributed to the amplified narrow transparency peak.

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confidence: 99%

Enhanced sensing performance by the plasmonic analog of electromagnetically induced transparency in active metamaterials

Dong

Liu

Cao

et al. 2010

Applied Physics Letters

228

100

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“…The VSRR is described by the fi rst circuit driven by V in (t) = Ve -i ω t which describes the in-coupling effect of the incident light. The HSRRs, on the other hand, can be excited via the induced magnetic fi eld of VSRR, thus the coupling mechanism between the fi rst circuit and other two circuits is accounted for as mutual inductance M 21 and M 31 . With the identical geometric dimensions of the three SRRs inside a metamolecule unit cell, their inductance and capacitance are set as equal …”

Section: Resultsmentioning

confidence: 99%

“…Without the proper distance between bright and dark modes, the PIT phenomenon is very diffi cult to observe even when the introducing structural asymmetry is very strong. This study of optical properties associated with magnetic resonance will provide important insight towards practical applications using magnetic plasmon material [30,31,34,44,45] .…”

Section: Discussionmentioning

confidence: 99%

“…Such a phenomenon has also been observed in plasmonic metamaterials where plasmon induced transparency (PIT) works very similarly to that of EIT, except that in the case of PIT, the mechanism is considered as the plasmon coupling of the different pathways of metamolecules between a bright element (radiative mode, which can couple to incident light) and a dark element (subradiative mode, which can hardly couple to incident light) which leads to sharp resonance and suppresses the radiative loss [28] . Therefore, PIT provides a promising pathway towards realizing of ultra-sensitive biosensors [29,30] , slow light propagation [31,32] , and nanoruler of sub-microstructures or bio-molecular [33,34] .…”

Section: Introductionmentioning

confidence: 99%

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Magnetic plasmon induced transparency in three-dimensional metamolecules

Chen

Yang

et al. 2012

Nanophotonics

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In 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 profi le the so-called electromagnetically induced transparency (EIT). In the fi eld of plasmonic metamaterials, the subwavelength metallic structures play a role similar to atoms in nature. The interference of their near-fi eld 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 fi rst 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 meta molecules. 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.

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“…Then, the destructive interference of these modes induces a narrow transparency region in the otherwise absorptive spectrum. Since the detection of the PIT effect, a lot of theoretical as well as experimental studies have been done revealing its potential in various applications such as ultrafast sensing [8][9][10], (a) E-mail: koijam@iitg.ernet.in switching applications [10], slow light phenomena [11][12][13][14], terahertz modulations [15] etc.…”

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confidence: 99%

Plasmon-induced transparency in graphene-based terahertz metamaterials

Devi¹,

Islam²,

Chowdhury³

et al. 2017

EPL

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-Plasmon induced transparency (PIT) effect in a terahertz graphene metamaterial is numerically and theoretically analyzed. The proposed metamaterial comprises of a pair of graphene split ring resonators placed alternately on both sides of a graphene strip of nanometer scale. The PIT effect in the graphene metamaterial is studied for different vertical and horizontal configurations. Our results reveal that there is no PIT effect in the graphene metamaterial when the centers of both the split ring resonators and the graphene strip are collinear to each other. This is a noteworthy feature, as the PIT effect does not vanish for similar configuration in a metal-based metamaterial structure. We have further shown that the PIT effect can be tuned by varying the Fermi energy of graphene layer. A theoretical model using the three level plasmonic system is established in order to validate the numerical results. Our studies could be significant in designing graphene based frequency agile ultra-thin devices for terahertz applications.Introduction. -Electromagnetically induced transparency (EIT) is an interference effect that occurs in a three level atomic system. In EIT, an atom that absorbs a particular light signal is rendered transparent by shining another light signal having nearly the same resonance frequency [1]. In 2008, a novel study done by Zhang and his co-workers revealed that an EIT like phenomenon can occur in plasmonic metamaterials (MMs) [2]. The plasmonic analogue of this EIT effect is known as the Plasmon Induced Transparency (PIT) effect in MMs [2][3][4][5]. PIT usually occurs as a result of interference between the bright and dark plasmonic modes. The bright mode strongly couples with the incident light while the dark mode couples weakly with the incident light [6]. For the PIT effect to occur, both the bright and the dark modes should have similar resonant frequencies [2,7]. Then, the destructive interference of these modes induces a narrow transparency region in the otherwise absorptive spectrum. Since the detection of the PIT effect, a lot of theoretical as well as experimental studies have been done revealing its potential in various applications such as ultrafast sensing [8][9][10],

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Electromagnetically induced transparency and slow light in an array of metallic nanoparticles

Cited by 186 publications

References 48 publications

Enhanced sensing performance by the plasmonic analog of electromagnetically induced transparency in active metamaterials

Enhanced sensing performance by the plasmonic analog of electromagnetically induced transparency in active metamaterials

Magnetic plasmon induced transparency in three-dimensional metamolecules

Plasmon-induced transparency in graphene-based terahertz metamaterials

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