Electrochemically controlled metasurfaces with high …
We showcase electrochemically controlled anomalous transmission and holography with good switching performance. Such electrochemically powered optical metasurfaces lay a solid basis to develop …
Designing Metasurfaces for Efficient Solar Energy …
The model from Du et al. assisted in discovering nonintuitive relationship between the moth-eye metasurface and optical responses, and then efficiently designed a metasurface with ultrabroadband antireflection and …
Quasi-BIC based all-dielectric metasurfaces for ultra-sensitive ...
The metasurface in-plane symmetry is disrupted when (r_{1} ne r_{2} ne r), opening a new radiation pathway for the incident beam to leak into zero-order channel, which is the method by which ...
Advances on broadband and resonant chiral metasurfaces
Metasurface structures can create localized chiral optical fields with an effective wavelength much smaller than that in free space, thus the interaction between chiral molecules and the localized ...
Tunable/Reconfigurable Metasurfaces: Physics and Applications
With active elements incorporated into metasurface designs, one can realize tunable and/or reconfigurable metadevices with functionalities controlled by external stimuli, opening a new platform to dynamically manipulate EM waves. In this article, we briefly review recent progress on tunable/reconfigurable metasurfaces, focusing on their working ...
Twisted moiré conductive thermal metasurface
Authors control heat transfer through twisting moiré conductive thermal metasurface, showcasing the potential for manipulating thermal conductivity and temperature gradients with imitated magic ...
Tunable Metasurfaces: The Path to Fully Active …
The metasurface, composed of catenary-shaped GST meta-atoms on barium fluoride (BaF 2), utilizes a combination of electric and magnetic dipole resonances to achieve this functionality, and could be useful in applications where the …
A review of terahertz wave plate on metasurface
Chiral metamaterials are characterized by optically responsive chirality and can be utilized on THz metasurface wave plate thereby obtaining greater birefringence than normal wave plate [].Fan et al. [] designed a THz metasurface HWP as the one shown in Fig. 3.This HWP utilizes a three-layer chiral structure with metal resonators to achieve linear polarization …
Exploring the potential benefits of using metasurface for galloping ...
It is found that using the metasurface distributed with convex cylinder ornaments of diameter 6 mm and height 9 mm leads to the largest vibration displacement and largest voltage output. Compared to the typical GPEH, the maximum vibration displacement and maximum output voltage of the proposed galloping piezoelectric energy harvester can be ...
Resonant metasurfaces for generating complex quantum states
A metasurface consisting of square nanoresonators obeys C 2 and C 4 rotational symmetry; photons at the BIC frequency are trapped inside the resonators because of zero coupling to radiating modes. A small notch in the cube breaks the rotational symmetry ( Fig. 1C ) and transforms these symmetry-protected BICs into quasi-BICs, which can ...
The rise of electrically tunable metasurfaces | Science …
In medical imaging, metasurface SLMs'' capability to create custom wavefronts could allow for correction of tissue-induced aberrations, potentially improving noninvasive diagnostic imaging. Their compact size and …
Metasurface Energy Harvesters: State-of-the-Art Designs and …
Abstract: Metasurface Energy Harvesters (MEHs) have emerged as a prominent enabler of highly efficient Radio Frequency (RF) energy harvesters. This paper provides a comprehensive and …
Planar Photonics with Metasurfaces
A metasurface structured on the subwavelength scale in the lateral directions can be deterministic (i.e., periodic and aperiodic) or random. In practice, such a metasurface is represented by a patterned metal-dielectric layer that is very thin compared with the wavelength of the incident light and is typically deposited on a supporting substrate.
Flexible Terahertz Metasurface Absorbers Empowered by Bound …
Flexible Terahertz Metasurface Absorbers Empowered by Bound States in the Continuum. Guizhen Xu, Guizhen Xu. State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055 China.
Continuous spectral and coupling-strength encoding with dual
A dual-gradient metasurface is introduced that allows continuous control over light–matter coupling in the spectral and quality-factor parameter space. Used for molecular sensing, it achieves ...
Intelligent metasurfaces: control, communication and computing
Conceptual illustration and history backgrounds of intelligent metasurface. a Intelligent metasurface, AI-empowered artificial materials, is a smart platform enabling various functions (for instance, data mining, communication, energy harvest, control, sensing, etc.) by processing its illuminated waves on the physical level.b About 70-years evolutions of Artificial …
Design and Development of Metasurface Materials for Enhancing ...
Recently, metasurface-based photodetectors (metaphotodetectors) have been developed and applied in various fields. Metasurfaces are artificial materials with unique properties that have emerged over the past decade, and photodetectors are powerful tools used to quantify incident electromagnetic wave information by measuring changes in the conductivity of irradiated …
Roadmap for Optical Metasurfaces | ACS Photonics
Metasurfaces have recently risen to prominence in optical research, providing unique functionalities that can be used for imaging, beam forming, holography, polarimetry, and many more, while keeping device …
Graded elastic metasurface for enhanced energy harvesting
The elastic metasurface used for energy harvesting (a) and conventional dispersion curves (b) for a periodic array of identical resonators of fixed height (here we take the resonator to have height 581 mm, just before that endowed with piezo-patches in the graded wedge of (a)). Panel (c) illustrates the trapping mechanism for the axial mode due ...
Nonlinear photonic metasurfaces | Nature Reviews Materials
Photonic metasurfaces can be used to control the polarization, phase and amplitude of light. Nonlinear metasurfaces enable giant nonlinear optical chirality, realization of the geometric Berry ...
Metasurface-enhanced multifunctional flag nanogenerator for …
The metasurface-enhanced FTENG with careful optimization, striking a balance between energy harvesting and sensing capabilities, achieves a linearity of 0.992 over a wind speed range of 2.3–14.4 m/s and a peak power density of 250 mW/m 2. Finally, the FTENG demonstrates its excellent abilities to light LEDs, power the wireless sensor node ...
Roadmap for Optical Metasurfaces | ACS Photonics
Metasurfaces have recently risen to prominence in optical research, providing unique functionalities that can be used for imaging, beam forming, holography, polarimetry, and many more, while keeping device dimensions small. Despite the fact that a vast range of basic metasurface designs has already been thoroughly studied in the literature, the number of …