Electromagnetically induced transparency
View article: Symmetry‐Protected Dual Bound States in the Continuum in Metamaterials
Symmetry‐Protected Dual Bound States in the Continuum in Metamaterials Open
Bound state in the continuum (BIC) is a mathematical concept with an infinite radiative quality factor ( Q ) that exists only in an ideal infinite array of resonators. In photonics, it is essential to achieve high Q resonances for enhanced…
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Highly Efficient Coherent Optical Memory Based on Electromagnetically Induced Transparency Open
Quantum memory is an important component in the long-distance quantum communication based on the quantum repeater protocol. To outperform the direct transmission of photons with quantum repeaters, it is crucial to develop quantum memories …
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Electrically Tunable Slow Light Using Graphene Metamaterials Open
Metamaterials with classical analogues of electromagnetically induced transparency open new avenues in photonics for realizing smaller, more efficient slow light devices without quantum approaches. However, most of the metamaterial-based s…
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Electromagnetically induced transparency in optical microcavities Open
Electromagnetically induced transparency (EIT) is a quantum interference effect arising from different transition pathways of optical fields. Within the transparency window, both absorption and dispersion properties strongly change, which …
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Electromagnetically induced transparency control in terahertz metasurfaces based on bright-bright mode coupling Open
We demonstrate a classical analogue of electromagnetically induced transparency (EIT) in a highly flexible planar terahertz metamaterial (MM) comprised of three-gap split ring resonators. The keys to achieve EIT in this system are the freq…
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Dynamically tunable plasmonically induced transparency in sinusoidally curved and planar graphene layers Open
To achieve plasmonically induced transparency (PIT), general near-field plasmonic systems based on couplings between localized plasmon resonances of nanostructures rely heavily on the well-designed interantenna separations. However, the im…
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Optical π phase shift created with a single-photon pulse Open
A single-photon pulse creates a π phase shift for another light pulse, which is important for optical quantum computation.
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Absorption and slow-light analysis based on tunable plasmon-induced transparency in patterned graphene metamaterial Open
We propose a novel simple patterned monolayer graphene metamaterial structure based on tunable terahertz plasmon-induced transparency (PIT). Destructive interference in this structure causes pronounced PIT phenomenon, and the PIT response …
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Dynamically tunable dual plasmon-induced transparency and absorption based on a single-layer patterned graphene metamaterial Open
Dual plasmon-induced transparency (PIT) and plasmon-induced absorption (PIA) are simultaneously achieved in an integrated metamaterial composed of single layer of graphene. Electric field distribution and coupled mode theory (CMT) are used…
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Atom-light interactions in quasi-one-dimensional nanostructures: A Green's-function perspective Open
Based on a formalism that describes atom-light interactions in terms of the classical electromagnetic Green's function, we study the optical response of atoms and other quantum emitters coupled to one-dimensional photonic structures, such …
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Engineering the level structure of a giant artificial atom in waveguide quantum electrodynamics Open
Engineering light-matter interactions at the quantum level has been central to the pursuit of quantum optics for decades. Traditionally, this has been done by coupling emitters, typically natural atoms and ions, to quantized electromagneti…
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Realization of tunable plasmon-induced transparency by bright-bright mode coupling in Dirac semimetals Open
A numerical and theoretical study is presented on the realization of the tunable plasmon-induced transparency (PIT) effect in Dirac semimetal films (DSFs) that are known as “three-dimensional graphene”. The weak hybridization between the t…
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Exciton–Plasmon Coupling and Electromagnetically Induced Transparency in Monolayer Semiconductors Hybridized with Ag Nanoparticles Open
Exciton-plasmon coupling in hybrids of a monolayer transition metal dichalcogenide and Ag nanoparticles is investigated in the weak and strong coupling regimes. In the weak coupling regime, both absorption enhancement and the Purcell effec…
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Determining the angle-of-arrival of a radio-frequency source with a Rydberg atom-based sensor Open
In this work, we demonstrate the use of a Rydberg atom-based sensor for determining the angle of arrival of an incident radio frequency (RF) wave or signal. The technique uses electromagnetically induced transparency in Rydberg atomic vapo…
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An electromagnetic modulator based on electrically controllable metamaterial analogue to electromagnetically induced transparency Open
Electromagnetically induced transparency (EIT) is a promising technology for the enhancement of light-matter interactions, and recent demonstrations of the EIT analogue realized in artificial micro-structured medium have remarkably reduced…
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Electromagnetically-induced-transparency ground-state cooling of long ion strings Open
Electromagnetically-induced-transparency (EIT) cooling is a ground-state\ncooling technique for trapped particles. EIT offers a broader cooling range in\nfrequency space compared to more established methods. In this work, we\nexperimentall…
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Active control and switching of broadband electromagnetically induced transparency in symmetric metadevices Open
Electromagnetically induced transparency (EIT) arises from coupling between the bright and dark mode resonances that typically involve subwavelength structures with broken symmetry, which results in an extremely sharp transparency band. He…
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Magnon-induced transparency and amplification in 𝒫𝒯-symmetric cavity-magnon system Open
Recent research on parity-time- (𝒫𝒯-) symmetric optical structures have exhibited great potential for achieving distinctive optical behaviour which is unattainable with ordinary optical systems. Here we propose a 𝒫𝒯-symmetric cavity-magnon…
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Optical quantum memory based on electromagnetically induced transparency Open
Electromagnetically induced transparency (EIT) is a promising approach to implement quantum memory in quantum communication and quantum computing applications. In this paper, following a brief overview of the main approaches to quantum mem…
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Magnetically controllable slow light based on magnetostrictive forces Open
The magnetostrictive effect provides an opportunity for exploring fundamental phenomena related to the phonon-magnon interaction. Here we show a tunable slow light in a cavity magnetomechanical system consisting of photon, magnon and phono…
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Design of a terahertz metamaterial sensor based on split ring resonator nested square ring resonator Open
A terahertz (THz) sensor based on the metamaterial structure, split ring resonator with four-gaps relied on centrosymmetric nested square ring resonator, is presented. The two resonant elements of the metamaterial structure generate a corr…
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High Q-factor with the excitation of anapole modes in dielectric split nanodisk arrays Open
The simultaneous realization of high Q-factor resonances and strong near-field enhancements around and inside of dielectric nanostructures is important for many applications in nanophotonics. However, the incident fields are often confined…
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Lattice-induced transparency in planar metamaterials Open
Lattice modes are intrinsic to periodic structures and they can be easily tuned and controlled by changing the lattice constant of the structural array. Previous studies have revealed the excitation of sharp absorption resonances due to la…
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Dual tunable plasmon-induced transparency based on silicon–air grating coupled graphene structure in terahertz metamaterial Open
A graphene plasmonic structure consists of three graphene layers mingled with a silicon-air grating is proposed. We theoretically predict and numerically simulate the plasmon-induced transparency effect in this system at terahertz waveleng…
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Microwave electrometry via electromagnetically induced absorption in cold Rydberg atoms Open
The atom-based traceable standard for microwave electrometry shows promising\nadvantages by enabling stable and uniform measurement. Here we theoretically\npropose and then experimentally realize an alternative direct International\nSystem…
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Electromagnetically induced transparency, absorption, and microwave-field sensing in a Rb vapor cell with a three-color all-infrared laser system Open
A comprehensive study of three-photon electromagnetically-induced transparency (EIT) and absorption (EIA) on the rubidium cascade $5S_{1/2} \rightarrow 5P_{3/2}$ (laser wavelength 780~nm), $5P_{3/2} \rightarrow 5D_{5/2}$ (776~nm), and $5D_…
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All-dielectric metamaterial analogue of electromagnetically induced transparency and its sensing application in terahertz range Open
A novel electromagnetically induced transparency (EIT) all-dielectric metamaterial is proposed, fabricated, and characterized. The unit cell of the proposed metamaterial comprises of two asymmetric split ring resonators (a-SRRs) positioned…
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Integrated metamaterial with functionalities of absorption and electromagnetically induced transparency Open
A switchable metamaterial with bifunctionality of absorption and electromagnetically induced transparency is proposed based on the phase-transition characteristic of phase change material-vanadium dioxide. When vanadium dioxide is in the m…
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Triple plasmon-induced transparency and optical switch desensitized to polarized light based on a mono-layer metamaterial Open
A mono-layer metamaterial comprising four graphene-strips and one graphene-square-ring is proposed herein to realize triple plasmon-induced transparency (PIT). Theoretical results based on the coupled mode theory (CMT) are in agreement wit…
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Tunable electromagnetically induced transparency based on graphene metamaterials Open
In this paper we propose a graphene-based metasurface structure that can exhibit tunable electromagnetically-induced-transparency-like (EIT) spectral response at mid-infrared frequencies. The metasurface structure is composed of two subwav…