Polarization-Independent Metamaterial Analog of Electromagnetically Induced Transparency for a Refractive-Index-Based Sensor

Meng, Fan‐Yi; Wu, Qun; Erni, Daniel; Wu, Ke; Lee, Jong‐Chul

doi:10.1109/tmtt.2012.2209455

Cited by 190 publications

(113 citation statements)

References 45 publications

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“…It can be concluded that the change of the dielectric constant of the sandwiched dielectric layer between SRDS inclusions as a chiral metamaterial is much more sensitive than MTM based sensors. It can be decided by comparing the results of this study and metamaterial based sensor studies [20][21][22][23]. The physical mechanism of the SRDS based chiral structure and sensing layer can easily be explained by the help of the interaction of asymmetric waves and the sensing layer.…”

Section: Simulation and Experimental Setupmentioning

confidence: 95%

“…When the relative permittivity of the sensing layer shifts from 2.33 to 9.9, SRDS resonance frequency shifts from 9.52 GHz to 9.92 GHz. The main advantages of the proposed structure is the stable value of the transmission constant and the lower value of transmission with respect to the topologies in literature for sensing [20][21][22][23].…”

Section: Temperature Density and Humidity Application Of The Chiral mentioning

confidence: 99%

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Chiral Metamaterial Based Multifunctional Sensor Applications

Karaaslan¹,

Bakır²

2014

PIER

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Abstract-In this work, sensor abilities of a chiral metamaterial based on split ring resonators with double splits (SRDS) are demonstrated both theoretically and experimentally in X band range. This study is based on transmission measurements and simulations monitoring the resonance frequency changes with respect to the thickness of the sensing layer and permittivity values. Experimental and simulated results show that the resonance frequency of the chiral metamaterial based SRDS sensor is linearly related to the permittivity and the thickness of the sensor layer which creates a suitable approach for sensing environment and organic parameters. When the sensor layer filled with the related material, changes in the tissue temperature, sand humidity and calcium chloride density lead to resonance frequency changes. The physical mechanisms are explained by using both equivalent circuit model and the fundamental sensitivity theorem of chiral sensors. This is the first study investigating a sensing mechanism based on the chiral metamaterials in X band range.

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Section: Simulation and Experimental Setupmentioning

confidence: 95%

Section: Temperature Density and Humidity Application Of The Chiral mentioning

confidence: 99%

Chiral Metamaterial Based Multifunctional Sensor Applications

Karaaslan¹,

Bakır²

2014

PIER

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“…6(c). At the resonance peak, most currents are located in the dark SRRs, whereas there is hardly any current appearing in the ICW, and the anti-parallel currents 31 ow in each SRR and ICW. This current distribution behavior results from the destructive interference of EM elds between bright dipole and dark toroidal dipole modes.…”

Section: -712-141725mentioning

confidence: 99%

“…7(c)). In addition, when s 2 is kept constant and s 1 is varied, the transparency window is split into two transmission peaks due to asymmetric couplings 17,31 between the SRRs and ICW resonators. In other words, when s 1 is varied, the ICW undergoes selective coupling 17,31 with the two SRRs because of the asymmetric conguration; 17,31,32 this results in a dual-band EIT effect, as shown in Fig.…”

Section: 31mentioning

confidence: 99%

A low-loss electromagnetically induced transparency (EIT) metamaterial based on coupling between electric and toroidal dipoles

et al. 2017

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Herein, an effective approach to construct a low-loss metamaterial by incorporating an electric toroidal dipole response into electromagnetically induced transparency (EIT) effect has been proposed, which is numerically and experimentally demonstrated. The low-loss metamaterial consists of an I-type cut wire (ICW) and two spiral ring resonators (SRRs). It is numerically verified that the low-loss electric toroidal dipole resonance can be excited by rational rotation of SRR, accompanied by a circumfluent magnetic field distribution. Via subtle geometry adjustment, we realized the spectral overlap of electric and toroidal dipoles and then observed a low-loss EIT resonance based on destructive couplings between them. In addition, the effect of parametric variation for the metamaterial on EIT resonance is investigated. In particular, we have experimentally verified that low-loss EIT resonance is also obtained by altering the rotation axis of two SRRs. By scaling down our structure, our design also applies to higher frequencies. This low-loss scheme provides possibilities for the design of low-loss optical devices and highly sensitive sensors.

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“…[16][17][18][19][20][21][22][23][24][25][26] Most EIT-like metamaterials were based on two kinds of resonant modes. [27][28][29][30][31][32][33][34][35] One was a "brightmode" which had a highly radiative mode coupled to propagating waves with a low Q-factor. The other was a "darkmode (or trapped-mode)" with a high Q-factor which couldn't be excited by the propagating waves directly, but coupled with the "bright-mode."…”

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confidence: 99%

Ultra-broadband electromagnetically induced transparency using tunable self-asymmetric planar metamaterials

Han

Yang

Guo

2013

Journal of Applied Physics

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Articles you may be interested inActively bias-controlled metamaterial to mimic and modulate electromagnetically induced transparency Appl. Phys. Lett.Integrating non-planar metamaterials with magnetic absorbing materials to yield ultra-broadband microwave hybrid absorbers Appl. Phys. Lett.We numerically and experimentally demonstrate a tunable electromagnetically induced transparency (EIT)-like spectral response in a self-asymmetric planar metamaterial in microwave region. This EIT-like physical mechanism is characterized by magnetic dipole coupling induced transparency, which is different from classical properties of EIT-like phenomenon. Our proposed system can be better explained by making an analogy to three-level K-type system. Further study also revealed that an ultra-broadband transparency window with the maximum bandwidth up to 7.8 GHz, extending from 6.1 GHz to 13.9 GHz, could be realized by simply adjusting the depth of the structure. V C 2013 AIP Publishing LLC. [http://dx.

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Polarization-Independent Metamaterial Analog of Electromagnetically Induced Transparency for a Refractive-Index-Based Sensor

Cited by 190 publications

References 45 publications

Chiral Metamaterial Based Multifunctional Sensor Applications

Chiral Metamaterial Based Multifunctional Sensor Applications

A low-loss electromagnetically induced transparency (EIT) metamaterial based on coupling between electric and toroidal dipoles

Ultra-broadband electromagnetically induced transparency using tunable self-asymmetric planar metamaterials

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