2017
DOI: 10.1002/adom.201600938
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Broadband Wide‐Angle Multifunctional Polarization Converter via Liquid‐Metal‐Based Metasurface

Abstract: Metasurfaces enable flat optical components with predesigned functionalities, including the polarization conversion, using sub-wavelength elements. However, switching between different functionalities of the metasurface-based optical components is extremely difficult because sub-wavelength elements have to be finely addressed to change the spatial phase gradient for desired functionality. Here, we demonstrate, for the first time, a broadband wideangle multi-functional polarization converter via galinstan-based… Show more

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Cited by 188 publications
(93 citation statements)
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“…A key challenge in the field of optical metasurfaces is the realization of reconfigurable, random‐access surfaces, devices whose individual nanostructures can be geometrically rearranged in order to produce “on‐demand” optical properties. Demonstration of this capability would unlock a variety of novel adaptive photonic devices, including dynamic lenses, active holograms, and functionality‐switchable devices, and would have wide‐ranging application in optics, data, communications, and fundamental physics.…”
Section: Discussionmentioning
confidence: 99%
“…A key challenge in the field of optical metasurfaces is the realization of reconfigurable, random‐access surfaces, devices whose individual nanostructures can be geometrically rearranged in order to produce “on‐demand” optical properties. Demonstration of this capability would unlock a variety of novel adaptive photonic devices, including dynamic lenses, active holograms, and functionality‐switchable devices, and would have wide‐ranging application in optics, data, communications, and fundamental physics.…”
Section: Discussionmentioning
confidence: 99%
“…Realizing the dynamic manipulation of optical waves, which is a fundamental requirement of optical integration, plays a key role in optical switch, optical communication, and the implementation of optical multifunctional devices . Nowadays, the dynamic manipulation of optical waves with metasurfaces always involves reconfigurable materials or elastic substrates . For example, varactor diodes, flexible substrate, and liquid metals are widely used in GHz to realizing the dynamic manipulation of electromagnetic waves, while semiconductor, superconductor, perovskite, and 2D materials are main approaches in THz regime .…”
Section: Single‐dimensional Manipulation Of Optical Waves With Metasumentioning
confidence: 99%
“…Nowadays, the dynamic manipulation of optical waves with metasurfaces always involves reconfigurable materials or elastic substrates . For example, varactor diodes, flexible substrate, and liquid metals are widely used in GHz to realizing the dynamic manipulation of electromagnetic waves, while semiconductor, superconductor, perovskite, and 2D materials are main approaches in THz regime . To realizing the dynamic manipulation of optical waves, phase change materials, 2D materials, liquid crystal, and elastic substrates are normally used …”
Section: Single‐dimensional Manipulation Of Optical Waves With Metasumentioning
confidence: 99%
“…Different from 3D metamaterials, metasurfaces are 2D periodic or nonperiodic arrays of subwavelength particles, and one can adopt the generalized sheet transition condition method and transverse resonance method to analyze their properties . In addition, the proposal of generalized Snell's laws has promoted the development of metasurfaces by using abrupt phase shifts to control EM characteristics, enabling many novel functionalities such as phase modulations, polarization controls, amplitude absorptions, and surface wave manipulations from microwaves to visible lights …”
Section: Introductionmentioning
confidence: 99%