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| 1 | Achromatic super-oscillatory lenses with subwavelength focusing显示文摘Lenses are crucial to light-enabled technologies.Conventional lenses have been perfected to achieve near-diffraction-limited resolution and minimal chromatic aberrations.However,such lenses are bulky and cannot focus light into a hotspot smaller than a half-wavelength of light.Pupil filters,initially suggested by Toraldo di Francia,can overcome the resolution constraints of conventional lenses but are not intrinsically chromatically corrected.Here we report single-element planar lenses that not only deliver sub-wavelength focusing,thus beating the diffraction limit of conventional refractive lenses,but also focus light of different colors into the same hotspot.Using the principle of super-oscillations,we designed and fabricated a range of binary dielectric and metallic lenses for visible and infrared parts of the spectrum that are manufactured on silicon wafers,silica substrates and optical fiber tips.Such low-cost,compact lenses could be useful in mobile devices,data storage,surveillance,robotics,space applications,imaging,manufacturing with light and spatially resolved nonlinear microscopies. | Guang Hui Yuan Edward TF Rogers Nikolay I Zheludev | 2017 | Light(Science & Applications)2017，6，1： | 10 |
| 2 | The magnetic response of graphene split-ring metamaterials显示文摘Graphene has emerged as a promising platform for THz plasmonics,allowing high confinement,long lifetimes and fast electrical tunability.Here,we predict a strong magnetic dipole response by graphene split nanorings at THz frequencies,allowing the attainment of metamaterials with a high degree of field confinement(approximately one hundredth of the excitation wavelength)that is not reachable with conventional noble metals.The magnetic response of highly doped graphene split-rings in the far-infrared is much stronger than that displayed by gold structures of similar thicknesses.We further explored stacked graphene layers as a practical way of producing high-frequency magnetism in thin,electrically tunable metamaterials.Our results support the great potential of using graphene to achieve electrically tunable magnetic metamaterials. | Nikitas Papasimakis Sukosin Thongrattanasiri Nikolay I Zheludev FJ Garcıa de Abajo | 2013 | Light(Science & Applications)2013，2，1： | 5 |
| 3 | Controlling light with light using coherent metadevices: all-optical transistor, summator and invertor显示文摘Although vast amounts of information are conveyed by photons in optical fibers,the majority of data processing is performed electronically,creating the infamous‘information bottleneck’and consuming energy at an increasingly unsustainable rate.The potential for photonic devices to directly manipulate light remains unfulfilled due largely to a lack of materials with strong,fast optical nonlinearities.In this paper,we show that small-signal amplifier,summator and invertor functions for optical signals may be realized using a four-port device that exploits the coherent interaction of beams on a planar plasmonic metamaterial,assuming no intrinsic nonlinearity.The redistribution of energy among ports can provide nonlinear input-output signal dependencies and may be coherently controlled at very low intensity levels,with multi-THz bandwidth and without introducing signal distortion,thereby presenting powerful opportunities for novel optical data processing architectures,complexity oracles and the locally coherent networks that are becoming part of the mainstream telecommunications agenda. | Xu Fang Kevin F MacDonald Nikolay I Zheludev | 2015 | Light(Science & Applications)2015，4，1： | 5 |
| 4 | Controlling light-with-light without nonlinearity显示文摘According to the fundamental Huygens superposition principle,light beams traveling in a linear medium will pass though one another without mutual disturbance.Indeed,the field of photonics is based on the premise that controlling light signals with light requires intense laser fields to facilitate beam interactions in nonlinear media,where the superposition principle can be broken.Here we challenge this wisdom and demonstrate that two coherent beams of light of arbitrarily low intensity can interact on a metamaterial layer of nanoscale thickness in such a way that one beam modulates the intensity of the other.We show that the interference of beams can eliminate the plasmonic Joule losses of light energy in the metamaterial or,in contrast,can lead to almost total absorption of light.Applications of this phenomenon may lie in ultrafast all-optical pulse-recovery devices,coherence filters and terahertz-bandwidth light-by-light modulators. | Jianfa Zhang Kevin F MacDonald Nikolay I Zheludev | 2012 | Light(Science & Applications)2012，1，1： | 5 |
| 5 | Two-dimensional control of light with light on metasurfaces显示文摘The ability to control the wavefront of light is fundamental to focusing and redistribution of light,enabling many applications from imaging to spectroscopy.Wave interaction on highly nonlinear photorefractive materials is essentially the only established technology allowing the dynamic control of the wavefront of a light beam with another beam of light,but it is slow and requires large optical power.Here we report a proof-of-principle demonstration of a new technology for two-dimensional(2D)control of light with light based on the coherent interaction of optical beams on highly absorbing plasmonic metasurfaces.We illustrate this by performing 2D all-optical logical operations(AND,XOR and OR)and image processing.Our approach offers diffractionlimited resolution,potentially at arbitrarily-low intensity levels and with 100 THz bandwidth,thus promising new applications in space-division multiplexing,adaptive optics,image correction,processing and recognition,2D binary optical data processing and reconfigurable optical devices. | Maria Papaioannou Eric Plum João Valente Edward TF Rogers Nikolay I Zheludev | 2016 | Light(Science & Applications)2016，5，1： | 3 |
| 6 | Nonlinear dielectric optomechanical metamaterials显示文摘We introduce a dielectric photonic metamaterial presenting a giant nonlinear optical response driven by resonant optomechanical forces.Being inherently free of Joule losses,it exhibits optical bistability at intensity levels of less than 0.2 mW mm22 and,furthermore,manifests nonlinear asymmetric transmission with a forward:backward optical extinction ratio of more than 30 dB. | Jianfa Zhang Kevin F MacDonald Nikolay I Zheludev | 2013 | Light(Science & Applications)2013，2，1： | 2 |
| 7 | 基于平面超材料的Fano谐振可调谐研究显示文摘基于两段相同金属分裂环谐振器构成的单层结构,从理论及实验方面研究了平面超材料的可调谐Fano谐振.实验测量了平面超材料对TE和TM入射波的电磁响应,利用电磁波的入射角度控制Fano谐振的强度,实现了谐振的开关特性,谐振频率红移可达到21%.基于有限元法给出了平面超材料的场分布,强的正常色散表明平面超材料的电磁响应可类比经典电磁诱导透明现象,仿真与实验结果相符合.对称结构超材料Fano谐振的开/关特性为超材料性能的可调谐控制提供了有效途径. | 刘冉 史金辉 E.Plum V.A. Fedotov N.I. Zheludev E.Plum | 2012 | 物理学报2012，61，15： | 2 |
| 8 | Experimental measurement of the staggered magnetization curve for a haldane spin chain显示文摘 | Zheludev A Ressouche E Maslov S | 1998 | Phys Rev Lett1998，80，： | 1 |
| 9 | Polarized-neutron observation of longitudinal haldane-Gap excitations in Nd2BaNiO5显示文摘 | Raymond S Yokoo T Zheludev A | 1999 | Phys Rev Lett1999，82，： | 1 |
| 10 | Universal behavior of one-dimensional gapped antiferromagnets in a staggered magnetic field显示文摘 | Maslov S Zheludev A | 1998 | Phys Rev Lett1998，80，： | 1 |
| 11 | Asym- metric transmission of light and enantiomerically sensitive plasmon resonance in planar chiral nanostruetures显示文摘 | Fedotov V A Sehwaneeke A S Zheludev N I | 2007 | Nano Lett2007，7，7： | 1 |
| 12 | Layered chiral metallic microstructures with inductive coupling显示文摘 | Y Svirko N Zheludev M Osipov | 2001 | Appl Phys Lett2001，78，4： | 1 |
| 13 | Lasing spaser显示文摘 | ZHELUDEV N I PROSVIRNIN S L PAPASIMAKIS N | 2008 | Nat Photonics2008，2，6： | 1 |
| 14 | The road ahead for metamaterials 显示文摘 | Zheludev N I | 2010 | Science2010，328，： | 1 |
| 15 | From metamaterials to metadevices 显示文摘 | N I Zheludev Y S Kivshar | 2012 | Nature Mater2012，11，11： | 1 |
| 16 | The plasmon Talbot effect 显示文摘 | M R Dennis N I Zheludev F Javier Garcia de Abajo | 2007 | Opt Express2007，15，15： | 1 |
| 17 | Lasing Spaser显示文摘 | Zheludev N I Prosvirnin S L Papasimakis N | 2008 | Nat Photonics2008，，6： | 1 |
| 18 | Extrinsic electromagnetic chirality in metamaterials 显示文摘 | E Plum V Fedotov N Zheludev | 2009 | J Opt A2009，11，07： | 1 |
| 19 | A wavelet packet algorithm for classification and detection of moving vehicles显示文摘 | Averbuch A Hulata E Zheludev V | 2001 | Multidimensional Systems and Signal Processing2001，12，： | 1 |
| 20 | Optical activity of crystals under the action of an electric field(electrogyration)显示文摘 | Zheludev I S | 1976 | Sov Phys Usp1976，19，12： | 1 |
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