Tunable metasurface with controllable polarizations and reflection/transmission properties

Mao, Ruiqi; Wang, Guangming; Cai, Tong; Hou, Haisheng; Wang, Dengpan; Wu, Borui; Zhang, Wenwu; Zhang, Qing

doi:10.1088/1361-6463/ab6cd5

Cited by 13 publications

(8 citation statements)

References 41 publications

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“…In recent years, tunable and reconfigurable metasurfaces are more desirable for rapid developments in multifunctional and multistandard communication systems. Tunable and reconfigurable metasurfaces were achieved by various methods, such as micro-electromechanical systems (MEMS), varactor diode, liquid crystal (LC), etc [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Ferrite is an approach to realize tunability [14].…”

Section: Introductionmentioning

confidence: 99%

“…Although MEMS-based metasurfaces exist the advantage of high tuning, they suffer from expensive costs and complicated fabrication processes. Varactor diodes and p-i-n diodes have the characteristics of high tuning or switching speed and large tuning range, which is very suitable for the design of tunable metasurfaces [18][19][20][21][22][23]. For example, four varactor diodes are used in the metasurface unit cell, whose reflection band can be tuned from 1.23 to 2.24 GHz [19].…”

Section: Introductionmentioning

confidence: 99%

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Tunable liquid crystal metasurface with polarization selection characteristic

Lv¹,

Fang²,

Zhang³

et al. 2022

J. Phys. D: Appl. Phys.

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In this paper, a systematic design method for tunable metasurface based on liquid crystal (LC) is proposed, which exhibits the property of polarization selection. A compact LC-based meta-atom with a dimension of 0.12 λ × 0.12 λ is designed. The metasurface element consists of a pair of planar metallic structures, between which the LC is sandwiched. The equivalent circuit, electric field distribution, and current distribution elaborate on the design method and operating principle of the LC-based metasurface in detail. Full wave simulations show that the tunable metasurface provides bandpass and bandstop characteristics for TE and TM polarization, respectively. The center frequencies of the passband and stopband are tuned from 10.88 GHz to 10.3 GHz and 10.90 GHz to 10.18 GHz, and the tuning range reaches up to 5.5% and 6.8%, respectively. Compared with the existing work, tunability is introduced while maintaining the polarization selection characteristics. Moreover, frequency responses of the LC-based metasurface under various incident angles from 0° to 70° are kept to be stable for arbitrary LC states. In addition, a prototype sample is designed, fabricated, and measured to verify the proposed design method.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tunable liquid crystal metasurface with polarization selection characteristic

Lv¹,

Fang²,

Zhang³

et al. 2022

J. Phys. D: Appl. Phys.

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“…Another possibility to increase the resonance Q-factor is to introduce a magnetic material in the sensing structure and to utilize the magneto-optical measurements of the transverse magneto-optical Kerr effect (TMOKE) instead of optical reflectance spectra [ 5 , 19 , 20 , 21 , 22 ]. The magneto-optical response can be enhanced with a variety of metamaterials [ 23 , 24 , 25 , 26 ], plasmonic coatings, dielectric nanostructures [ 27 , 28 , 29 ], and photonic crystals [ 30 , 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Sensing of Surface and Bulk Refractive Index Using Magnetophotonic Crystal with Hybrid Magneto-Optical Response

Ignatyeva

Kapralov

Golovko

et al. 2021

Sensors

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We propose an all-dielectric magneto-photonic crystal with a hybrid magneto-optical response that allows for the simultaneous measurements of the surface and bulk refractive index of the analyzed substance. The approach is based on two different spectral features of the magneto-optical response corresponding to the resonances in p- and s-polarizations of the incident light. Angular spectra of p-polarized light have a step-like behavior near the total internal reflection angle which position is sensitive to the bulk refractive index. S-polarized light excites the TE-polarized optical Tamm surface mode localized in a submicron region near the photonic crystal surface and is sensitive to the refractive index of the near-surface analyte. We propose to measure a hybrid magneto-optical intensity modulation of p-polarized light obtained by switching the magnetic field between the transverse and polar configurations. The transversal component of the external magnetic field is responsible for the magneto-optical resonance near total internal reflection conditions, and the polar component reveals the resonance of the Tamm surface mode. Therefore, both surface- and bulk-associated features are present in the magneto-optical spectra of the p-polarized light.

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“…metamaterials [1] or metasurfaces [2]) to manipulate waves has attracted intensive attention. This concept was developed from optics [3][4][5][6][7][8] to acoustics [9][10][11][12][13][14], and has recently been applied to elastic waves in solids [15][16][17][18][19][20][21][22]. Unlike the optical or acoustical metasurfaces which are mostly for bulk waves, the elastic metasurfaces are typically for guided waves in finitedimension solids.…”

Section: Introductionmentioning

confidence: 99%

Manipulation of shear horizontal guided wave with arbitrary wave fronts by using metasurfaces

Qiu

2020

J. Phys. D: Appl. Phys.

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In this work, we proposed a general method to manipulate the fundamental shear horizontal wave (SH 0 ) in plates with arbitrary wave fronts by using metasurfaces consisting of multiple parallel strips. Firstly, the guided waves in infinitely long rectangular strips with different widths were analyzed. The transmission characteristic of the fundamental shear horizontal wave in infinitely long rectangular strips (quasi-SH 0 ) was calculated and the relationship between the phase shift and the frequency-width product is obtained. Secondly, the mode conversion was analyzed for the oblique incidence of SH 0 wave from a large plate to a strip, and it was found that the Lamb wave S 0 also appeared. Then, the design method for metasurfaces under the incidence of SH 0 wave with arbitrary wave fronts was proposed. Two types of metasurfaces, i.e. the flat lenses and the ring-type source illusion devices, were designed to validate the proposed design method. Both simulations and experiments were conducted in which the thickness-shear d 15 piezoelectric rings and strips were used as the SH 0 wave exciters and the d 24 face-shear wafers were used as the wave receiver. Results showed that using the proposed method, different functional metasurfaces can be designed and work well under arbitrary wave fronts incidence. The proposed metasurface design method is potentially useful for practical applications such as nondestructive testing, advanced signal modulation and seismic wave controlling.

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Tunable metasurface with controllable polarizations and reflection/transmission properties

Cited by 13 publications

References 41 publications

Tunable liquid crystal metasurface with polarization selection characteristic

Tunable liquid crystal metasurface with polarization selection characteristic

Sensing of Surface and Bulk Refractive Index Using Magnetophotonic Crystal with Hybrid Magneto-Optical Response

Manipulation of shear horizontal guided wave with arbitrary wave fronts by using metasurfaces

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