Featured
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News & Views |
Light routing by nanoscale nonlinear interferometry with attosecond control
Directionality of nonlinear emission from a dielectric metasurface is controlled by fine-tuning the relative time delay and polarization of two pulsed pump beams.
- Gustavo Grinblat
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Article |
All-optical free-space routing of upconverted light by metasurfaces via nonlinear interferometry
The interference between two frequency-degenerate upconversion processes enables a metasurface-based, all-optical routing by controlling the phase delay between pump beams.
- Agostino Di Francescantonio
- , Attilio Zilli
- & Michele Celebrano
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Article |
Leaky-wave metasurfaces for integrated photonics
Based on symmetry-breaking perturbations, leaky-wave metasurfaces with pointwise control of the amplitude, phase and polarization of surface emission offer a universal generalization of grating couplers for integrated photonics.
- Heqing Huang
- , Adam C. Overvig
- & Nanfang Yu
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Article |
Spin-dependent properties of optical modes guided by adiabatic trapping potentials in photonic Dirac metasurfaces
Photonic Dirac metasurfaces with smooth trapping potentials guide optical modes endowed with pseudo-spin. Such potentials give rise to different radiative properties of modes of opposite pseudo-spin.
- Svetlana Kiriushechkina
- , Anton Vakulenko
- & Alexander B. Khanikaev
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Article |
Coloured vortex beams with incoherent white light illumination
Optical elements fabricated with a 3D printing technique generate beams carrying orbital angular momentum under incoherent white light illumination.
- Hongtao Wang
- , Hao Wang
- & Joel K. W. Yang
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Article |
Solving integral equations in free space with inverse-designed ultrathin optical metagratings
Metasurfaces can solve Fredholm integral equations of the second kind for free-space radiation at optical wavelengths. To this end, an inverse-designed metagrating is coupled to a semitransparent mirror providing feedback to perform an analogue version of the Neumann series.
- Andrea Cordaro
- , Brian Edwards
- & Albert Polman
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Article |
Versatile full-colour nanopainting enabled by a pixelated plasmonic metasurface
A plasmonic metasurface for full-colour nanopainting simultaneously achieves a chiaroscuro presentation, wide-gamut palette, high saturation and dynamic colour tunability.
- Maowen Song
- , Lei Feng
- & Ting Xu
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News & Views |
Merging metasurfaces with microfluidics
By using microfluidics to control the refractive index of the fluid surrounding dielectric metasurfaces, the optical response and functionality of metasurface devices can be tuned on-demand to enable comprehensive control of the flow of light.
- Justus C. Ndukaife
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Article |
Metasurface optofluidics for dynamic control of light fields
A metasurface optofluidic platform enables dynamic intensity and spectral control of light fields.
- Qitong Li
- , Jorik van de Groep
- & Mark L. Brongersma
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Article |
Reconfigurable training and reservoir computing in an artificial spin-vortex ice via spin-wave fingerprinting
A nanomagnetic artificial spin ice array with two types of nanomagnets can host both magnetic macrospins and vortices. This enables highly reconfigurable magnon behaviour, which is leveraged for hardware neuromorphic computation.
- Jack C. Gartside
- , Kilian D. Stenning
- & Will R. Branford
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Article |
Exceptional points in lossy media lead to deep polynomial wave penetration with spatially uniform power loss
Exceptional points in nanostructured lossy photonic waveguides lead to uniformly distributed losses and linear amplitude decay.
- Alexander Yulaev
- , Sangsik Kim
- & Vladimir A. Aksyuk
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Article |
Non-local metasurfaces for spectrally decoupled wavefront manipulation and eye tracking
High optical-quality-factor, non-local metasurfaces enable independent functions across different wavelength bands.
- Jung-Hwan Song
- , Jorik van de Groep
- & Mark L. Brongersma
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Letter |
Microscopic metavehicles powered and steered by embedded optical metasurfaces
Optomechanical effects enable the realization of optical metavehicles that can be manoeuvred across a surface in plane-wave illumination and steered by incident polarization.
- Daniel Andrén
- , Denis G. Baranov
- & Mikael Käll
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Review Article |
Nanophotonics for light detection and ranging technology
This Review highlights the technological challenges linked to the application of nanophotonics for light detection and ranging (LiDAR).
- Inki Kim
- , Renato Juliano Martins
- & Junsuk Rho
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News & Views |
Tunable phase-change metasurfaces
The use of phase-change materials makes metasurfaces and nanoantennas electrically tunable and switchable, bringing their functionality to the next level.
- Sergey Lepeshov
- & Alex Krasnok
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Article |
Electrically reconfigurable non-volatile metasurface using low-loss optical phase-change material
An electrically reconfigurable optical metasurface using a Ge2Sb2Se4Te phase change material shows half an octave spectral tuning and promising performances for optical beam steering applications.
- Yifei Zhang
- , Clayton Fowler
- & Juejun Hu
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Article |
Electrical tuning of phase-change antennas and metasurfaces
A metasurface comprising electrically controlled heating units and a phase-change material offer non-volatile and reversible modulation of reflectance by more than fourfold.
- Yifei Wang
- , Patrick Landreman
- & Mark L. Brongersma
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Article |
Complex-amplitude metasurface-based orbital angular momentum holography in momentum space
A complex-amplitude metasurface hologram is conceptually designed and three-dimensionally printed. The device allows for high-bandwidth orbital angular momentum multiplexing holography and holographic video displays.
- Haoran Ren
- , Xinyuan Fang
- & Stefan A. Maier
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Letter |
Relation between microscopic interactions and macroscopic properties in ferroics
Both extrinsic and intrinsic factors determine the properties of ferroic materials and are difficult to disentangle. This study on artificial crystals of planar nanomagnets with well-defined, tuneable magnetic interactions unveils the intrinsic correlations between microscopic interactions and macroscopic properties such as the domain size and morphology or the domain-wall mobility.
- Jannis Lehmann
- , Amadé Bortis
- & Manfred Fiebig
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Article |
Photonic Rashba effect from quantum emitters mediated by a Berry-phase defective photonic crystal
Planar metasurfaces are a valuable tool to achieve custom-tailored photoluminescence from quantum emitters. The incorporation of a WSe2 monolayer into a photonic crystal slab with geometric phase defects enables spin-dependent manipulation of the emission from valley excitons of the WSe2, as well as from randomly placed quantum emitters.
- Kexiu Rong
- , Bo Wang
- & Erez Hasman
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Article |
High quality factor phase gradient metasurfaces
Quality factors as high as 2,500 can be achieved for subwavelength phase gradient metasurfaces.
- Mark Lawrence
- , David R. Barton III
- & Jennifer A. Dionne
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Article |
Probing nanoscale fluctuation of ferromagnetic meta-atoms with a stochastic photonic spin Hall effect
Magneto-optical interaction of light with magnetic metasurfaces can give rise to the photonic spin Hall effect such that the light trajectory depends on the polarization of the light. For disordered systems, the probability distribution of the spin-dependent trajectories is a sensitive tool to detect random nanoscale variations in the metasurface.
- Bo Wang
- , Kexiu Rong
- & Erez Hasman
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News & Views |
Chalcogenide glass metasurfaces from fluid instabilities
Fluid instabilities in chalcogenide glasses can be exploited to self-assemble optical metasurfaces on various template substrates over a large area.
- Tian Gu
- & Juejun Hu
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Article |
Self-assembly of nanostructured glass metasurfaces via templated fluid instabilities
Optical glasses can form high-quality dielectric metasurfaces by controlled dewetting and fluid instabilities.
- Tapajyoti Das Gupta
- , Louis Martin-Monier
- & Fabien Sorin
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Letter |
Achromatic metalens array for full-colour light-field imaging
A metalens array of GaN nanoantennas is used to make a full-colour achromatic light-field camera.
- Ren Jie Lin
- , Vin-Cent Su
- & Din Ping Tsai
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Letter |
Poling of an artificial magneto-toroidal crystal
The long-range magnetic order in an artificial crystal that exhibits emergent ferrotoroidicity on the mesoscale can be manipulated by an effective magnetic vortex field that is generated by a scanning process with a magnetic tip.
- Jannis Lehmann
- , Claire Donnelly
- & Manfred Fiebig
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Letter |
Deterministic coupling of site-controlled quantum emitters in monolayer WSe2 to plasmonic nanocavities
An array of Au nanocubes combined with a planar mirror simultaneously induces single-photon emitters at lithographically defined locations in WSe2 and enables directional outcoupling of Purcell-enhanced single photons with high quantum yield.
- Yue Luo
- , Gabriella D. Shepard
- & Stefan Strauf
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Article |
Directional lasing in resonant semiconductor nanoantenna arrays
Active dielectric nanoantenna arrays exhibit low-threshold and high-quality-factor directional lasing achieved via a leaky resonance excited in coupled gallium arsenide (GaAs) nanopillars.
- Son Tung Ha
- , Yuan Hsing Fu
- & Arseniy I. Kuznetsov
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Letter |
Switchable geometric frustration in an artificial-spin-ice–superconductor heterosystem
A superconducting thin film placed underneath a reconfigurable artificial-spin-ice structure in situ allows controllable geometric frustration with high degeneracy to be achieved.
- Yong-Lei Wang
- , Xiaoyu Ma
- & Wai-Kwong Kwok
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News & Views |
Imaging the rainbow
Dielectric metalenses made of high-index materials can compensate material dispersion to achieve broadband imaging in the visible.
- Thomas Zentgraf
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Article |
A broadband achromatic metalens in the visible
Integrating the Pancharatnam–Berry phase with integrated resonant nanoantennas in a metalens design produces an achromatic device capable of full-colour imaging in the visible range in transmission mode.
- Shuming Wang
- , Pin Chieh Wu
- & Din Ping Tsai
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Article |
A broadband achromatic metalens for focusing and imaging in the visible
Controlling the geometry of each dielectric element of a nanostructured surface enables frequency-dependent group delay and group delay dispersion engineering, and the fabrication of an achromatic metalens for imaging in the visible in transmission.
- Wei Ting Chen
- , Alexander Y. Zhu
- & Federico Capasso
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Article |
Reactive tunnel junctions in electrically driven plasmonic nanorod metamaterials
Chemical reactions in nanoscale gaps can be controlled by hot electrons generated by voltage-induced tunnelling.
- Pan Wang
- , Alexey V. Krasavin
- & Anatoly V. Zayats
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Article |
A graphene Zener–Klein transistor cooled by a hyperbolic substrate
Boron-nitride-supported graphene transistors show prominent current and noise temperature saturation due to hyperbolic phonon emission by non-equilibrium electron–hole pairs.
- Wei Yang
- , Simon Berthou
- & Bernard Plaçais
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News & Views |
Sensing without power
A thermally activated micromechanical switch delivers an electrical readout signal only when irradiated by a narrowband mid-infrared light, thanks to a metamaterial element that converts light into heat.
- Vladimir A. Aksyuk
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Article |
Controlling propagation and coupling of waveguide modes using phase-gradient metasurfaces
Optical waveguides patterned with gradient metasurfaces have compact footprints and broad wavelengths of operation thanks to tight control of the scattered light.
- Zhaoyi Li
- , Myoung-Hwan Kim
- & Nanfang Yu
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Letter |
High-strength magnetically switchable plasmonic nanorods assembled from a binary nanocrystal mixture
Two crystalline nanocrystals with superparamagnetic and plasmonic properties form mechanically strong hybrid nanorods with dual functionality.
- Mingliang Zhang
- , Daniel J. Magagnosc
- & Cherie R. Kagan
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Article |
Nanopatterning reconfigurable magnetic landscapes via thermally assisted scanning probe lithography
Thermally assisted magnetic scanning probe lithography is used to reversibly pattern magnetic anisotropy landscapes in a continuous exchange-bias system, where propagating spin waves are excited.
- E. Albisetti
- , D. Petti
- & R. Bertacco
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Editorial |
Where now for plasmonics?
Developing useful methods to control light–matter interactions at the nanoscale requires an appreciation of the needs of industry and innovative approaches that go beyond plasmonics.
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Perspective |
Reconfigurable nanomechanical photonic metamaterials
Nanostructured metamaterials fabricated on nanomembranes can be reconfigured by thermal, electric, magnetic and optical forces resulting in dynamically controlled optical properties.
- Nikolay I. Zheludev
- & Eric Plum
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Perspective |
Atomic-scale photonic hybrids for mid-infrared and terahertz nanophotonics
This Perspective discusses materials that can sustain hybrid surface plasmon and surface phonon polaritons for future nanophotonics applications.
- Joshua D. Caldwell
- , Igor Vurgaftman
- & Thomas L. Reinecke
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Review Article |
All-dielectric metamaterials
This Review discusses recent research efforts to confine and guide light at the nanoscale without using metals.
- Saman Jahani
- & Zubin Jacob
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Research Highlights |
Our choice from the recent literature
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Article |
Antenna-coupled photon emission from hexagonal boron nitride tunnel junctions
Efficient conversion of electrical current to photon emission can be acheived in a tunnelling device coupled to a nanostructured optical antenna.
- M. Parzefall
- , P. Bharadwaj
- & L. Novotny
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News & Views |
Transparent design
High-transmission metasurfaces based on elliptical silicon rods provide a simple approach to engineering the phase and polarization of light.
- Rashid Zia
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Letter |
Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission
Silicon pillars with elliptical cross-section are used to fabricate efficient metasurfaces that allow simultaneous control of the phase and polarization of the transmitted electromagnetic radiation.
- Amir Arbabi
- , Yu Horie
- & Andrei Faraon
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News & Views |
Phonon modes for faster flow
Molecular dynamics simulations show that the flow of water through carbon nanotubes can be enhanced by exciting the phonon modes of the nanotube.
- Lydéric Bocquet
- & Roland R. Netz
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Article |
Controlled steering of Cherenkov surface plasmon wakes with a one-dimensional metamaterial
Surface plasmon wakes can be created and steered using a one-dimensional metamaterial consisting of rotated nanoslits in which the phase velocity of a running wave of polarization propagates faster than the phase velocity of the surface plasmons.
- Patrice Genevet
- , Daniel Wintz
- & Federico Capasso
Multichannel meta-imagers for accelerating machine vision