Magnetic metamaterial analog of electromagnetically induced transparency and absorption

Zhu, Lei; Meng, Fan‐Yi; Dong, Lijun; Wu, Qun; Che, Bang-Jun; Gao, Ju; Fu, Jiahui; Zhang, Kuang; Yang, Guohui

doi:10.1063/1.4916189

Cited by 51 publications

(22 citation statements)

References 25 publications

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“…11,12 This physical insight leads to the realization of the EIT analogues in a series of classical optical systems, such as coupled microresonators, [13][14][15] photonic crystal waveguides, 16,17 a waveguide side-coupled to resonators 18,19 and metamaterials [20][21][22] , which are robust and free from the scathing experimental requirements of quantum optics. In particular, the metamaterial analogues of EIT through the near field coupling between the bright and dark mode resonators, have enabled the realization of this phenomenon at frequencies in radiofrequency (RF), [23][24][25][26] terahertz (THz), [27][28][29][30][31][32] near-infrared [33][34][35][36] and visible regimes [38][39][40] through defining a correspondingly tailored geometry for the unit cell. Due to the subwavelength thickness, these EIT analogues with the accompanying slow light and enhanced nonlinear effects have shown great prospects in designing very compact devices, such as optical filters, 41,42 optical buffers 43,44 and ultrasensitive biosensors.…”

Section: Introductionmentioning

confidence: 99%

Active modulation of electromagnetically induced transparency analogue in terahertz hybrid metal-graphene metamaterials

Xiao¹,

Wang²,

Liu³

et al. 2018

Carbon

414

161

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Metamaterial analogues of electromagnetically induced transparency (EIT) have been intensively studied and widely employed for slow light and enhanced nonlinear effects. In particular, the active modulation of the EIT analogue and well-controlled group delay in metamaterials have shown great prospects in optical communication networks. Previous studies have focused on the optical control of the EIT analogue by integrating the photoactive materials into the unit cell, however, the response time is limited by the recovery time of the excited carriers in these bulk materials. Graphene has recently emerged as an exceptional optoelectronic material. It shows an ultrafast relaxation time on the order of picosecond and its conductivity can be tuned via manipulating the Fermi energy. Here we integrate a monolayer graphene into metal-based terahertz (THz) metamaterials, and realize a complete modulation in the resonance strength of the EIT analogue at the accessible Fermi energy. The physical mechanism lies in the active tuning the damping rate of the dark mode resonator through the recombination effect of the conductive graphene. Note that the monolayer morphology in our work is easier to fabricate and manipulate than isolated fashion. This work presents a novel modulation strategy of the EIT analogue in the hybrid metamaterials, and pave the way towards designing very compact slow light devices to meet future demand of ultrafast optical signal processing.

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Section: Introductionmentioning

confidence: 99%

Active modulation of electromagnetically induced transparency analogue in terahertz hybrid metal-graphene metamaterials

Xiao¹,

Wang²,

Liu³

et al. 2018

Carbon

414

161

View full text Add to dashboard Cite

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“…The similar coherence and interference phenomenon, named as EIT-like effect, has been demonstrated in the classical systems such as plasma [14][15][16], mechanical or electric oscillators [17,18], coupled optical resonators [19][20][21][22][23][24], optical parametric oscillators [25][26][27], optomechanical systems [28][29][30] and even some metamaterial configurations [31][32][33]. Especially, the analog of EIT in coupled optical resonators, also called coupled-resonatorinduced transparency, has made great progress in experiment, which has been reported in the different optical systems, such as compound glass waveguide platform using relatively large resonators [34], fiber ring resonators [35], coupled fused-silica microspheres [36,37], integrated micron-size silicon optical resonator systems [38][39][40][41], photonic crystal cavities [42] and graphene-ring resonators [43].…”

mentioning

confidence: 56%

Controllable coupled-resonator-induced transparency in a dual-recycled Michelson interferometer

Jin

et al. 2018

Phys. Rev. A

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We theoretically and experimentally study the effect of the coupled-resonator-induced transparency in the Michelson interferometer with the dual-recycled configuration, which is equivalent to the adjustable coupled resonator. The coupling strength, corresponding to the splitting of the reflection spectrum and associated with the width of the coupled-resonator-induced transparent window, can be controlled by adjusting the arm lengths, i.e., the relative phase of the interference arms on the 50/50 beam splitter. Thus, this tunability of the coupling strength can be very fast, and the absorptive and dispersive properties can be effectively controlled. This work provides a new system to coherently control and storage optical field.

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“…The first approach is to design two sub-structures in the micro unit of metamaterial. Two sub-structures work as bright and dark modes, respectively, where the bright mode is coupled directly with the incident wave, and the dark mode is indirectly excited by incident wave through near-field coupling with bright mode [14,[19][20][21][22][23][24]. This coupling between bright and dark modes produces an EIT effect.…”

Section: Introductionmentioning

confidence: 99%

Low Loss and High Transmission Electromagnetically Induced Transparency (Eit) Effect in Cylindrical Through-Hole Dielectric Cubes

Zhu¹,

Zhao²,

Zhao³

et al. 2018

PIER M

Self Cite

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We numerically demonstrate that an electromagnetically induced transparency (EIT) effect can be achieved in an all-dielectric metamaterial, whose micro unit consists of two cylindrical throughhole cubes (CTCs). Two CTCs produce electric and magnetic Mie resonances in the vicinity of 6.2 GHz, respectively. Specially, the appropriate control on the interaction between two Mie resonances can lead to destructive interference of scattering fields, and thus the EIT effect with low loss and high transmission can be achieved. The influences of key parameters of all-dielectric metamaterial on its EIT effects are also investigated. In addition, the slow wave property of proposed structure is verified by computing the group delay, and the superiority of CTC is discussed. Such an all-dielectric metamaterial may have potential applications in areas such as low loss slow wave devices and high sensitivity sensors.

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Magnetic metamaterial analog of electromagnetically induced transparency and absorption

Abstract: Articles you may be interested in Tailoring dual-band electromagnetically induced transparency in planar metamaterials J. Appl. Phys. 117, 043107 (2015); 10.1063/1.4906853Actively bias-controlled metamaterial to mimic and modulate electromagnetically induced transparency Appl. Phys. Lett.

Cited by 51 publications

References 25 publications

Active modulation of electromagnetically induced transparency analogue in terahertz hybrid metal-graphene metamaterials

Active modulation of electromagnetically induced transparency analogue in terahertz hybrid metal-graphene metamaterials

Controllable coupled-resonator-induced transparency in a dual-recycled Michelson interferometer

Low Loss and High Transmission Electromagnetically Induced Transparency (Eit) Effect in Cylindrical Through-Hole Dielectric Cubes

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