Optics and photonics

  • Article
    | Open Access

    Tin based perovskite solar cells could be promising replacements for lead based counterparts due to their lower toxicity, but their efficiencies are much lower. Here, Liu et al. report stable tin based perovskite solar cells with efficiency over 10% by designing amorphous-polycrystalline nanostructures.

    • Xiao Liu
    • , Yanbo Wang
    • , Tianhao Wu
    • , Xin He
    • , Xiangyue Meng
    • , Julien Barbaud
    • , Han Chen
    • , Hiroshi Segawa
    • , Xudong Yang
    •  & Liyuan Han
  • Article
    | Open Access

    Controlling light with planar elements requires full polarization channels and reconstruction of optical signals. Here, the authors have demonstrated a general method relying on pixelated metasurfaces that enables wavefront shaping with arbitrary output polarization, allowing full utilization of polarization channels.

    • Qinghua Song
    • , Arthur Baroni
    • , Rajath Sawant
    • , Peinan Ni
    • , Virginie Brandli
    • , Sébastien Chenot
    • , Stéphane Vézian
    • , Benjamin Damilano
    • , Philippe de Mierry
    • , Samira Khadir
    • , Patrick Ferrand
    •  & Patrice Genevet
  • Article
    | Open Access

    Phonon polaritons hold promises for nanophotonic applications but external control of phonon polaritons remains challenging. Here, the authors achieve reversible and non-volatile switching of phonon polariton by modifying crystal structure and lattice vibrations via hydrogenation.

    • Yingjie Wu
    • , Qingdong Ou
    • , Yuefeng Yin
    • , Yun Li
    • , Weiliang Ma
    • , Wenzhi Yu
    • , Guanyu Liu
    • , Xiaoqiang Cui
    • , Xiaozhi Bao
    • , Jiahua Duan
    • , Gonzalo Álvarez-Pérez
    • , Zhigao Dai
    • , Babar Shabbir
    • , Nikhil Medhekar
    • , Xiangping Li
    • , Chang-Ming Li
    • , Pablo Alonso-González
    •  & Qiaoliang Bao
  • Article
    | Open Access

    Though organic emitters with room temperature phosphorescence (RTP) are attractive for various applications, realizing highly efficient and long lifetime emission remains a challenge. Here, the authors report the role of push-pull electronic effects on emission for organic RTP emitters.

    • Hai-Tao Feng
    • , Jiajie Zeng
    • , Ping-An Yin
    • , Xue-Dong Wang
    • , Qian Peng
    • , Zujin Zhao
    • , Jacky W. Y. Lam
    •  & Ben Zhong Tang
  • Article
    | Open Access

    Here, the authors investigate high-order bound states in the continuum and apply them on an integrated photonic platform for high-dimensional optical communication. The demonstrated mode (de)multiplexing and high-dimensional communication can enhance the data capacity with low insertion loss and crosstalk.

    • Zejie Yu
    • , Yeyu Tong
    • , Hon Ki Tsang
    •  & Xiankai Sun
  • Article
    | Open Access

    Plasmonic-enhanced nanosensors are limited in practical applications, as it remains challenging to detect molecules at low concentrations. Here, the authors introduce a buoyant particulate strategy in order to enrich analytes in the plasmonic hot spots.

    • Dongjie Zhang
    • , Leqin Peng
    • , Xinglong Shang
    • , Wenxiu Zheng
    • , Hongjun You
    • , Teng Xu
    • , Bo Ma
    • , Bin Ren
    •  & Jixiang Fang
  • Article
    | Open Access

    Microcombs provide many opportunities for integration in optical communications systems. Here, the authors implement a soliton crystal microcomb as a tool to demonstrate more than 44 Tb/s communications with high spectral efficiency.

    • Bill Corcoran
    • , Mengxi Tan
    • , Xingyuan Xu
    • , Andreas Boes
    • , Jiayang Wu
    • , Thach G. Nguyen
    • , Sai T. Chu
    • , Brent E. Little
    • , Roberto Morandotti
    • , Arnan Mitchell
    •  & David J. Moss
  • Article
    | Open Access

    Nanoscale integrated photonic devices have complicated combinations of optical eigenmodes. Here, the authors develop a far- to near-field transmission matrix microscopy that enables measuring higher-order modes of nanostructures beyond the capabilities of conventional near-field microscopy.

    • Eunsung Seo
    • , Young-Ho Jin
    • , Wonjun Choi
    • , Yonghyeon Jo
    • , Suyeon Lee
    • , Kyung-Deok Song
    • , Joonmo Ahn
    • , Q.-Han Park
    • , Myung-Ki Kim
    •  & Wonshik Choi
  • Article
    | Open Access

    Here, the authors present a light-responsive elastic metamaterial whose transmission spectrum can be tuned by light stimuli. More specifically, we demonstrate that an appropriate laser illumination is effective in reversibly widening an existing frequency band gap, doubling its initial value.

    • Antonio S. Gliozzi
    • , Marco Miniaci
    • , Annalisa Chiappone
    • , Andrea Bergamini
    • , Benjamin Morin
    •  & Emiliano Descrovi
  • Article
    | Open Access

    Conical intersections, a hallmark of polyatomic molecules, can be induced with light, leading to new reaction pathways. Here, the authors show that intense fields can create complex, beyond-conical intersections even in diatomics, resulting in an unexpected angular distribution of fragment ions.

    • M. Kübel
    • , M. Spanner
    • , Z. Dube
    • , A. Yu. Naumov
    • , S. Chelkowski
    • , A. D. Bandrauk
    • , M. J. J. Vrakking
    • , P. B. Corkum
    • , D. M. Villeneuve
    •  & A. Staudte
  • Article
    | Open Access

    Terahertz imaging is promising in many applications, but still relies on complex equipment. Here, the authors develop a simplified solution that enables terahertz real-time imaging using a single-pixel detector and rapid reconstruction methods.

    • Rayko Ivanov Stantchev
    • , Xiao Yu
    • , Thierry Blu
    •  & Emma Pickwell-MacPherson
  • Article
    | Open Access

    Solar-driven CO2 reduction by abundant water to alcohols is hindered by the sluggish water oxidation reaction. Here, the authors demonstrate that the microwave-synthesized carbon-dots possess unique hole-accepting nature, allowing stoichiometric oxygen and methanol production from water and CO2 with nearly 100% selectivity to methanol.

    • Yiou Wang
    • , Xu Liu
    • , Xiaoyu Han
    • , Robert Godin
    • , Jialu Chen
    • , Wuzong Zhou
    • , Chaoran Jiang
    • , Jamie F. Thompson
    • , K. Bayazit Mustafa
    • , Stephen A. Shevlin
    • , James R. Durrant
    • , Zhengxiao Guo
    •  & Junwang Tang
  • Article
    | Open Access

    Interaction of strong laser fields with matter provides powerful tools to image transient dynamics with high spatiotemporal resolution. The authors investigate strong-field ionisation of laser-aligned molecules showing the effect of molecular alignment on the photoelectron dynamics and the resulting influence of the molecular frame in imaging experiments.

    • Andrea Trabattoni
    • , Joss Wiese
    • , Umberto De Giovannini
    • , Jean-François Olivieri
    • , Terry Mullins
    • , Jolijn Onvlee
    • , Sang-Kil Son
    • , Biagio Frusteri
    • , Angel Rubio
    • , Sebastian Trippel
    •  & Jochen Küpper
  • Article
    | Open Access

    Defects in silicon carbide can act as single photon sources that also have the benefit of a host material that is already used in electronic devices. Here the authors demonstrate that they can control the distinguishability of the emitted photons by changing the defect spin state.

    • Naoya Morioka
    • , Charles Babin
    • , Roland Nagy
    • , Izel Gediz
    • , Erik Hesselmeier
    • , Di Liu
    • , Matthew Joliffe
    • , Matthias Niethammer
    • , Durga Dasari
    • , Vadim Vorobyov
    • , Roman Kolesov
    • , Rainer Stöhr
    • , Jawad Ul-Hassan
    • , Nguyen Tien Son
    • , Takeshi Ohshima
    • , Péter Udvarhelyi
    • , Gergő Thiering
    • , Adam Gali
    • , Jörg Wrachtrup
    •  & Florian Kaiser
  • Article
    | Open Access

    Suitability for large-scale quantum computation imposes severe requirements on single-photon sources in terms of purity, indistinguishability and heralding efficiency. Here, the authors boost all these figures of merit through a dual-mode pump-delayed four-wave mixing scheme in low-loss silicon waveguides.

    • S. Paesani
    • , M. Borghi
    • , S. Signorini
    • , A. Maïnos
    • , L. Pavesi
    •  & A. Laing
  • Article
    | Open Access

    New types of nonlocal correlations can arise in quantum networks, but experiments have not been done for more than two independent sources. Here, the authors violate a chained n-locality inequality in a network with five nodes and four independent sources, relying only on single-qubit measurements.

    • Davide Poderini
    • , Iris Agresti
    • , Guglielmo Marchese
    • , Emanuele Polino
    • , Taira Giordani
    • , Alessia Suprano
    • , Mauro Valeri
    • , Giorgio Milani
    • , Nicolò Spagnolo
    • , Gonzalo Carvacho
    • , Rafael Chaves
    •  & Fabio Sciarrino
  • Article
    | Open Access

    On-chip mechanical sensing platforms require tuneable lasers with narrow linewidth and low spectral noise, making read-out challenging. Here, the authors report a nanomechanical sensor with 80nm bandwidth, displacement imprecision of 45 fm/Hz1/2 as well as a dynamic range greater than 30 nm with integrated photodetectors.

    • Tianran Liu
    • , Francesco Pagliano
    • , René van Veldhoven
    • , Vadim Pogoretskiy
    • , Yuqing Jiao
    •  & Andrea Fiore
  • Article
    | Open Access

    Chip-scale modular components are important for nanophotonic applications. Here, the authors demonstrate post-processing of a silicon-on-insulator waveguide into an integrated hybrid plasmonic circuit, consisting of a plasmonic rotator and a nanofocusser module, which together result in nanoscale nonlinear wavelength conversion.

    • Alessandro Tuniz
    • , Oliver Bickerton
    • , Fernando J. Diaz
    • , Thomas Käsebier
    • , Ernst-Bernhard Kley
    • , Stefanie Kroker
    • , Stefano Palomba
    •  & C. Martijn de Sterke
  • Article
    | Open Access

    Molecules of solitons provide insight into fundamental interactions between them and the underlying nonlinear system. The reported heteronuclear molecules, comprised of dissipative solitons with distinct frequencies, temporal widths, and energies enter the multistability regime and yield in interlocked frequency combs.

    • Wenle Weng
    • , Romain Bouchand
    • , Erwan Lucas
    • , Ewelina Obrzud
    • , Tobias Herr
    •  & Tobias J. Kippenberg
  • Article
    | Open Access

    Designing efficient nonlinear dynamic resonances for weak signal amplification remains a challenge. Here, the authors demonstrate a resonance manipulation strategy able to enhance weak signals in a nonlinear oscillator consisting of an optically-probed driven nano-electromechanical resonator.

    • Avishek Chowdhury
    • , Marcel G. Clerc
    • , Sylvain Barbay
    • , Isabelle Robert-Philip
    •  & Remy Braive
  • Article
    | Open Access

    Here, the authors demonstrate the use of chaos to obtain 2-octave comb generation. The deformation lifts the circular symmetry and creates chaotic tunneling channels that enable broadband collection of intracavity emission with a single waveguide, introducing a new degree of freedom to microcomb studies.

    • Hao-Jing Chen
    • , Qing-Xin Ji
    • , Heming Wang
    • , Qi-Fan Yang
    • , Qi-Tao Cao
    • , Qihuang Gong
    • , Xu Yi
    •  & Yun-Feng Xiao
  • Article
    | Open Access

    Compact spectrometers can be useful in many applications and many sophisticated architectures have been proposed. In this work, the authors show that with an evaporating droplet on a fiber tip, spectrometry can be robustly and accurately performed with a simple and passive microfluidic system.

    • P. Malara
    • , A. Giorgini
    • , S. Avino
    • , V. Di Sarno
    • , R. Aiello
    • , P. Maddaloni
    • , P. De Natale
    •  & G. Gagliardi
  • Article
    | Open Access

    Imaging Cherenkov emission during radiotherapy can provide information on the delivered radiation dose, but is attenuated by optical properties of the tissue. Here the authors derive a correction factor applicable to breast X-ray radiotherapy in human subjects to improve the correlation between Cherenkov emission intensity and dose.

    • R. L. Hachadorian
    • , P. Bruza
    • , M. Jermyn
    • , D. J. Gladstone
    • , B. W. Pogue
    •  & L. A. Jarvis
  • Article
    | Open Access

    Today it remains unclear how excitons are electrically generated in individual nanocrystals. Here, the authors propose the identification of the longlived intermediate QD– state for exciton generation of CdSe-based QD-LEDs by a room temperature electrically-pumped single-molecule spectroscopy.

    • Yunzhou Deng
    • , Xing Lin
    • , Wei Fang
    • , Dawei Di
    • , Linjun Wang
    • , Richard H. Friend
    • , Xiaogang Peng
    •  & Yizheng Jin
  • Article
    | Open Access

    Defects in liquid crystals (LCs) find application in self-assembly of nanomaterials, optical-vortex generation and in tunable plasmonic metamaterials but methods for flexible and tailored fabrication of defects are scarce. Here, the authors demonstrate fabrication and stabilisation of electrically-tunable defects in an LC device using two-photon polymerisation, revealing interesting electro-optic behaviour.

    • John J. Sandford O’Neill
    • , Patrick S. Salter
    • , Martin J. Booth
    • , Steve J. Elston
    •  & Stephen M. Morris
  • Article
    | Open Access

    Efficient switching and routing of photons of different wavelengths is desirable for future quantum information applications. To this end the authors demonstrate interference in a multimode system between two optomechanically induced transparency processes in a diamond on-chip cavity.

    • David P. Lake
    • , Matthew Mitchell
    • , Barry C. Sanders
    •  & Paul E. Barclay
  • Article
    | Open Access

    Here, the authors present an experimental demonstration of adiabatic frequency conversion using the concept of time boundary by exploiting the properties of an ITO film operating near its epsilon-near-zero frequency. They demonstrate a large and controllable shift up to 14.9 THz.

    • Yiyu Zhou
    • , M. Zahirul Alam
    • , Mohammad Karimi
    • , Jeremy Upham
    • , Orad Reshef
    • , Cong Liu
    • , Alan E. Willner
    •  & Robert W. Boyd
  • Article
    | Open Access

    Integrated photonics allows integration of complex optical circuits on a single chip. Here, the authors propose a wavelength division multiplexing based electronic-photonic arithmetic logic unit for computing at high speeds and with improved power consumption to help with the physical limits of Moore’s law.

    • Zhoufeng Ying
    • , Chenghao Feng
    • , Zheng Zhao
    • , Shounak Dhar
    • , Hamed Dalir
    • , Jiaqi Gu
    • , Yue Cheng
    • , Richard Soref
    • , David Z. Pan
    •  & Ray T. Chen
  • Article
    | Open Access

    The crystallographic orientation of monolayers in van der Waals multi-layers controls their electronic and optical properties. Here the authors show how the twist angle affects Coulomb correlations governing the internal structure and the mutual interaction of excitons in homobilayers of WSe2.

    • Philipp Merkl
    • , Fabian Mooshammer
    • , Samuel Brem
    • , Anna Girnghuber
    • , Kai-Qiang Lin
    • , Leonard Weigl
    • , Marlene Liebich
    • , Chaw-Keong Yong
    • , Roland Gillen
    • , Janina Maultzsch
    • , John M. Lupton
    • , Ermin Malic
    •  & Rupert Huber
  • Article
    | Open Access

    Ultrafast imaging has been limited by the speed of electronic sensors. Here, the authors demonstrate single-shot compressed ultrafast spectral photography, which combines spectral encoding, pulse splitting, temporal shearing, and compressed sensing in order to achieve real-time imaging at 70 trillion frames per second.

    • Peng Wang
    • , Jinyang Liang
    •  & Lihong V. Wang
  • Article
    | Open Access

    The electrons in 2D materials like graphene are described by the relativistic Dirac equation. Here the authors present a lattice of evanescently coupled waveguides that emulates a wide range of Dirac excitations and study the type-II edge states that emerge in this photonic system.

    • Georgios G. Pyrialakos
    • , Nora Schmitt
    • , Nicholas S. Nye
    • , Matthias Heinrich
    • , Nikolaos V. Kantartzis
    • , Alexander Szameit
    •  & Demetrios N. Christodoulides
  • Article
    | Open Access

    Due to three-dimensional, stochastic and non-repeatable transitions of dissipative solitons, it is challenging to monitor their full dynamics. Here, the authors resolve the dynamics by wavelength and along two spatial dimensions with up to trillions of frames per second using compressed ultrafast photography.

    • Joseph C. Jing
    • , Xiaoming Wei
    •  & Lihong V. Wang
  • Article
    | Open Access

    Two-photon microscopy has been limited by low acquisition rates due to mechanical scanners. Here, the authors employ pulse-modulated, rapidly wavelength-swept lasers and inertia-free beam steering through angular dispersion in order to achieve non-linear microscopy with kilohertz frame rates.

    • Sebastian Karpf
    • , Carson T. Riche
    • , Dino Di Carlo
    • , Anubhuti Goel
    • , William A. Zeiger
    • , Anand Suresh
    • , Carlos Portera-Cailliau
    •  & Bahram Jalali
  • Article
    | Open Access

    Ultraviolet-C radiation sources are important for disinfection and photochemical water purification, but development of persistent phosphors is needed for other applications. Here the authors report praseodymium-doped silicate ultraviolet-C persistent phosphors for self-sustained glowing tags in bright light.

    • Xianli Wang
    • , Yafei Chen
    • , Feng Liu
    •  & Zhengwei Pan
  • Article
    | Open Access

    Synthetic platforms coupled with artificial intelligent algorithms are highly desirable for advancing the discovery of new materials with target properties. Here the authors demonstrate the use of an autonomous laboratory for the discovery of optically active CsPbBr3 inorganic perovskite nanocrystals.

    • Jiagen Li
    • , Junzi Li
    • , Rulin Liu
    • , Yuxiao Tu
    • , Yiwen Li
    • , Jiaji Cheng
    • , Tingchao He
    •  & Xi Zhu
  • Article
    | Open Access

    Visualising single-molecule reactions, to understand their mechanisms, is a challenging task. Here, the authors investigate disulfide exchange reactions with thiolates immobilised on a gold nanoparticle through a label-free optoplasmonic sensor, and detect individual disulfide interactions in solution

    • Serge Vincent
    • , Sivaraman Subramanian
    •  & Frank Vollmer
  • Article
    | Open Access

    At terahertz frequencies, link discovery by scanning is impractically slow. Here, the authors propose an alternative, single-shot link-finding method based on a leaky-wave device.

    • Yasaman Ghasempour
    • , Rabi Shrestha
    • , Aaron Charous
    • , Edward Knightly
    •  & Daniel M. Mittleman
  • Article
    | Open Access

    Here, the authors fabricate a metasurface with high brightness and large gamut structured colors by combining a silicon metasurface with a refractive index matching layer. The experimentally demonstrated gamut is 181.8% of sRGB, 135.6% of Adobe RGB, and 97.2% of Rec.2020.

    • Wenhong Yang
    • , Shumin Xiao
    • , Qinghai Song
    • , Yilin Liu
    • , Yunkai Wu
    • , Shuai Wang
    • , Jie Yu
    • , Jiecai Han
    •  & Din-Ping Tsai
  • Article
    | Open Access

    Observing the photonic analogue of an unpaired Dirac point is hard, as it requires breaking the time-reversal symmetry. Here, the authors use gyromagnetic materials to do that, and thus succeed in observing an unpaired Dirac point in a planar photonic crystal operating at microwave frequencies.

    • Gui-Geng Liu
    • , Peiheng Zhou
    • , Yihao Yang
    • , Haoran Xue
    • , Xin Ren
    • , Xiao Lin
    • , Hong-xiang Sun
    • , Lei Bi
    • , Yidong Chong
    •  & Baile Zhang
  • Article
    | Open Access

    Edge states are excitations existing at the boundary of truncated periodic materials with specific spectral degeneracies, and their properties are enriched when materials possess a nonlinear response. Here, the authors provide experimental evidence of edge soliton formation in a nonlinear photonic graphene lattice induced in an atomic vapour cell.

    • Zhaoyang Zhang
    • , Rong Wang
    • , Yiqi Zhang
    • , Yaroslav V. Kartashov
    • , Feng Li
    • , Hua Zhong
    • , Hua Guan
    • , Kelin Gao
    • , Fuli Li
    • , Yanpeng Zhang
    •  & Min Xiao
  • Article
    | Open Access

    Currently a cell-resolution map of the human cornea can only be obtained in the clinic with a confocal microscope in contact with the eye. Here the authors develop a full-field/spectral-domain OCT microscope (FF/SD OCT) to enable cell-level detail of the entire ocular surface, as well as blood flow and tear dynamics.

    • Viacheslav Mazlin
    • , Peng Xiao
    • , Jules Scholler
    • , Kristina Irsch
    • , Kate Grieve
    • , Mathias Fink
    •  & A. Claude Boccara
  • Article
    | Open Access

    For many two-dimensional semiconductors, such as MoS2, the exciton absorption increases with thickness. Here, the authors show that, in black phosphorus, less material absorbs more light due to exciton resonances.

    • Guowei Zhang
    • , Shenyang Huang
    • , Fanjie Wang
    • , Qiaoxia Xing
    • , Chaoyu Song
    • , Chong Wang
    • , Yuchen Lei
    • , Mingyuan Huang
    •  & Hugen Yan
  • Article
    | Open Access

    Interaction between Cooper pairs and other collective excitations may reveal important information about the pairing mechanism. Here, the authors observe a universal jump in the phase of the driven Higgs oscillations in cuprate thin films, indicating the presence of a coupled collective mode, as well as a nonvanishing Higgs-like response at high temperatures, suggesting a potential nonzero pairing amplitude above Tc.

    • Hao Chu
    • , Min-Jae Kim
    • , Kota Katsumi
    • , Sergey Kovalev
    • , Robert David Dawson
    • , Lukas Schwarz
    • , Naotaka Yoshikawa
    • , Gideok Kim
    • , Daniel Putzky
    • , Zhi Zhong Li
    • , Hélène Raffy
    • , Semyon Germanskiy
    • , Jan-Christoph Deinert
    • , Nilesh Awari
    • , Igor Ilyakov
    • , Bertram Green
    • , Min Chen
    • , Mohammed Bawatna
    • , Georg Cristiani
    • , Gennady Logvenov
    • , Yann Gallais
    • , Alexander V. Boris
    • , Bernhard Keimer
    • , Andreas P. Schnyder
    • , Dirk Manske
    • , Michael Gensch
    • , Zhe Wang
    • , Ryo Shimano
    •  & Stefan Kaiser
  • Article
    | Open Access

    Deep-blue emitting organic materials with low exciton lifetime are required to realize efficient organic light-emitting diodes (OLEDs) at high brightness. Here, the authors report deep-blue OLEDs featuring thermally activated delayed fluorescence molecules with subnano-second exciton lifetime.

    • Jong Uk Kim
    • , In Seob Park
    • , Chin-Yiu Chan
    • , Masaki Tanaka
    • , Youichi Tsuchiya
    • , Hajime Nakanotani
    •  & Chihaya Adachi
  • Article
    | Open Access

    High-index dielectric materials are in great demand for nanophotonic applications. Here, the authors show that chalcogenide topological insulators are suitable candidates for dielectric nanophotonics in the infrared spectral range by reporting resonances in Bi2Te3 crystals sustained in the mid-infrared.

    • H. N. S. Krishnamoorthy
    • , G. Adamo
    • , J. Yin
    • , V. Savinov
    • , N. I. Zheludev
    •  & C. Soci
  • Article
    | Open Access

    Non-human primate models are important for the development of high quality vision restoration therapies for blindness. Here, the authors demonstrate restoration of light responses in foveal retinal ganglion cells of the living macaque following optogenetic gene therapy.

    • Juliette E. McGregor
    • , Tyler Godat
    • , Kamal R. Dhakal
    • , Keith Parkins
    • , Jennifer M. Strazzeri
    • , Brittany A. Bateman
    • , William S. Fischer
    • , David R. Williams
    •  & William H. Merigan
  • Article
    | Open Access

    Circular polarization luminescence (CPL) spectroscopy is a tool to study chiroptical systems, but the measurement process is generally very slow. The authors introduce a CPL technique with much faster acquisition, demonstrating meaningful time-dependent measurements and enabling new applications.

    • Lewis E. MacKenzie
    • , Lars-Olof Pålsson
    • , David Parker
    • , Andrew Beeby
    •  & Robert Pal
  • Article
    | Open Access

    Ultrafast driving of vanadium dioxide can induce a large structural phase transition, which can be used to generate picosecond strain pulses. Here the authors show that the photo-induced phase transition can contribute 0.45% strain without causing undesirable heating.

    • Iaroslav A. Mogunov
    • , Sergiy Lysenko
    • , Anatolii E. Fedianin
    • , Félix E. Fernández
    • , Armando Rúa
    • , Anthony J. Kent
    • , Andrey V. Akimov
    •  & Alexandra M. Kalashnikova
  • Article
    | Open Access

    The compound eyes of arthropods provide a visual advantage by seeing a wide range of angles all at once, but cameras that mimic them are usually curved and bulky. Here, the authors develop a flat, plasmonic image sensor array that enables high-quality wide-angle vision without lenses or curvature.

    • Leonard C. Kogos
    • , Yunzhe Li
    • , Jianing Liu
    • , Yuyu Li
    • , Lei Tian
    •  & Roberto Paiella