Tunable Polarization Conversion and Rotation based on a Reconfigurable Metasurface

Zhang, M.; Zhang, Wu; Liu, Ai Qun; Li, F. C.; Lan, Chunguang

doi:10.1038/s41598-017-11953-z

Cited by 47 publications

(39 citation statements)

References 30 publications

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“…These devices have the ability to sense, control, and actuate on the micro and nano-scale. They have been utilized to add tunability to a wide range of applications including RF switches in circuits, phase shifters, and antennas [239][240][241][242][243][244][245][246][247] , microphones, speakers, acoustic sensors, and accelerometers [248][249][250][251][252][253] , and recently in metamaterials and metasurfaces 48,[74][75][76][77][78][79][80][81][82][83][254][255][256][257][258][259][260][261][262] . A switchable magnetic metamaterial is shown in Fig.…”

Section: Micro-nanoelectromechanical Systemsmentioning

confidence: 99%

Tunable and reconfigurable metasurfaces and metadevices

Nemati

Wang

Hong

et al. 2018

Opto-Electronic Advances

328

205

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Metasurfaces, two-dimensional equivalents of metamaterials, are engineered surfaces consisting of deep subwavelength features that have full control of the electromagnetic waves. Metasurfaces are not only being applied to the current devices throughout the electromagnetic spectrum from microwave to optics but also inspiring many new thrilling applications such as programmable on-demand optics and photonics in future. In order to overcome the limits imposed by passive metasurfaces, extensive researches have been put on utilizing different materials and mechanisms to design active metasurfaces. In this paper, we review the recent progress in tunable and reconfigurable metasurfaces and metadevices through the different active materials deployed together with the different control mechanisms including electrical, thermal, optical, mechanical, and magnetic, and provide the perspective for their future development for applications.

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Section: Micro-nanoelectromechanical Systemsmentioning

confidence: 99%

Tunable and reconfigurable metasurfaces and metadevices

Nemati

Wang

Hong

et al. 2018

Opto-Electronic Advances

328

205

View full text Add to dashboard Cite

show abstract

“…With the introduction of tunable or switchable elements, metasurfaces can adapt to different environments or take multiple functionalities [12], [16], [41], [42]. Tuning has been demonstrated in several forms, including thermal [43], electrical [10], [44], and optical tuning [45]; or the use pin diodes [46], varactors [47], memristors [48], and microelectromechanical systems (MEMS) [49].…”

Section: Background: Programmable Metasurfacesmentioning

confidence: 99%

Error Analysis of Programmable Metasurfaces for Beam Steering

Taghvaee

Cabellos‐Aparicio

Georgiou

et al. 2020

IEEE J. Emerg. Sel. Topics Circuits Syst.

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Recent years have seen the emergence of programmable metasurfaces, where the user can modify the EM response of the device via software. Adding reconfigurability to the already powerful EM capabilities of metasurfaces opens the door to novel cyber-physical systems with exciting applications in domains such as holography, cloaking, or wireless communications. This paradigm shift, however, comes with a non-trivial increase of the complexity of the metasurfaces that will pose new reliability challenges stemming from the need to integrate tuning, control, and communication resources to implement the programmability. While metasurfaces will become prone to failures, little is known about their tolerance to errors. To bridge this gap, this paper examines the reliability problem in programmable metamaterials by proposing an error model and a general methodology for error analysis. To derive the error model, the causes and potential impact of faults are identified and discussed qualitatively. The methodology is presented and exemplified for beam steering, which constitutes a relevant case for programmable metasurfaces. Results show that performance degradation depends on the type of error and its spatial distribution and that, in beam steering, error rates over 20% can still be considered acceptable.

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“…Most metasurfaces are partially made of metals, the highly conductive nature of which is applicable to subwavelength devices. Recently, the progress of metasurfaces has motivated research into dynamic terahertz polarization control utilizing photoswitchable chiral metamolecules [5], deformable MEMS (micro electro mechanical systems) spirals [6,7], gate-tunable polarization modulators with graphene [8], tunable MEMS cross-polarization converters [9], and tunable wave plates with actuated microcantilever arrays to switch circular and linear polarization states of transmitted waves [10]. Phase change materials such as vanadium dioxide have also been applied to dynamic quarter-wave * nakata@qc.rcast.u-tokyo.ac.jp plates with variable working frequencies [11,12] and reconfigurable polarization modulators between linear and circular polarization states [13,14].…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Terahertz Quarter-Wave Plate for Helicity Switching Based on Babinet Inversion of an Anisotropic Checkerboard Metasurface

et al. 2019

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Dynamic helicity switching by utilizing metasurfaces is challenging because it requires deep modulation of polarization states. To realize such helicity switching, this paper proposes a dynamic metasurface functioning as a switchable quarter-wave plate, the fast axis of which can be dynamically rotated by 90 • . The device is based on the critical transition of an anisotropic metallic checkerboard, which realizes the deep modulation and simultaneous design of the switchable states. After verifying the functionality of the ideally designed device in a simulation, we tune its structural parameters to realize practical experiments in the terahertz frequency range. By evaluating the fabricated sample with vanadium dioxide, the conductivity of which can be controlled by temperature, its dynamic helicity switching function is demonstrated.

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Tunable Polarization Conversion and Rotation based on a Reconfigurable Metasurface

Cited by 47 publications

References 30 publications

Tunable and reconfigurable metasurfaces and metadevices

Tunable and reconfigurable metasurfaces and metadevices

Error Analysis of Programmable Metasurfaces for Beam Steering

Reconfigurable Terahertz Quarter-Wave Plate for Helicity Switching Based on Babinet Inversion of an Anisotropic Checkerboard Metasurface

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