Featured
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| Open AccessSqueezed light from an oscillator measured at the rate of oscillation
The authors demonstrated an unprecedented level of polarization squeezing of light generated by an atomic ensemble, and a new regime of continuous quantum measurements on a macroscopic material oscillator.
- Christian Bærentsen
- , Sergey A. Fedorov
- & Eugene S. Polzik
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Article
| Open AccessMolecular fingerprinting of biological nanoparticles with a label-free optofluidic platform
Biosensing tools to detect multiple analytes in a high-throughput manner are still hindered by many limitations. Here, the authors present a label-free optofluidic platform integrating digital holography and microfluidics for analyte detection, allowing for the fingerprinting of heterogenous biological samples.
- Alexia Stollmann
- , Jose Garcia-Guirado
- & Romain Quidant
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| Open AccessElectric-field tunable Type-I to Type-II band alignment transition in MoSe2/WS2 heterobilayers
Photoluminescence and photocurrent measurements indicate that MoSe2/WS2 hetero-bilayers can be switched from type-I to type-II band alignment by applying a vertical electric field.
- Jed Kistner-Morris
- , Ao Shi
- & Nathaniel Gabor
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Article
| Open AccessCrown ether decorated silicon photonics for safeguarding against lead poisoning
Lead toxification in society is a public health crisis. The exposure to lead poisoning gives rise to a multitude of health issues. In this work, a chip-scale photonic platform that enables the highly quantitative detection of lead is demonstrated.
- Luigi Ranno
- , Yong Zen Tan
- & Jia Xu Brian Sia
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Article
| Open AccessOptical vectorial-mode parity Hall effect: a case study with cylindrical vector beams
This study uses a customized metasurface to unveil a distinct parity Hall effect in degenerate optical vectorial modes. This work realizes the advances in meta-devices and showcases new possibilities for manipulating optical fields based on parity.
- Changyu Zhou
- , Weili Liang
- & Xiaocong Yuan
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Article
| Open AccessPlasma electron acceleration driven by a long-wave-infrared laser
The laser pulses that drive most laser wakefield accelerators have wavelengths near 1 micrometer and peak power > 100 terawatts. Here, the authors drive plasma wakes with 10 micrometer, 2-terawatt pulses, yielding relativistic electron beams with a collimated, narrow-energy-bandwidth component.
- R. Zgadzaj
- , J. Welch
- & M. C. Downer
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Article
| Open AccessIntegrated and DC-powered superconducting microcomb
Here the authors have developed a superconducting microwave frequency comb that is fully integrated, easy to manufacture, and operates with ultra-low power consumption, and could significantly advance microwave photonics and quantum processor integration.
- Chen-Guang Wang
- , Wuyue Xu
- & Peiheng Wu
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Article
| Open AccessUltra-narrowband and rainbow-free mid-infrared thermal emitters enabled by a flat band design in distorted photonic lattices
Narrowband thermal emitters realized with photonic nanostructures usually suffer from the rainbow effect. Here, the authors demonstrate rainbow-free thermal emissions with high temporal coherence through harnessing flatband high-Q resonances.
- Kaili Sun
- , Yangjian Cai
- & Zhanghua Han
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Article
| Open AccessCoherent electric field control of orbital state of a neutral nitrogen-vacancy center
Color centers in diamond have been proposed as a link between remote superconducting units in hybrid quantum systems, where their orbital degree of freedom is utilized. Here the authors report coherent electric-field control of the orbital state of a neutral NV center in diamond.
- Hodaka Kurokawa
- , Keidai Wakamatsu
- & Hideo Kosaka
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Article
| Open AccessGiant magneto-photoluminescence at ultralow field in organic microcrystal arrays for on-chip optical magnetometer
The optical detection of magnetic fields is difficult for low field strengths. Here, the authors show how strong magneto-photoluminescence can be achieved in rubrene microcrystals and demonstrate its application in a magnetometer.
- Hong Wang
- , Baipeng Yin
- & Chuang Zhang
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Article
| Open AccessCoherent optical coupling to surface acoustic wave devices
Surface acoustic wave devices enable modern electronics and are desirable for quantum systems. Here the authors access and control these devices optically, enabling high acoustic quality factors, materials spectroscopy, and hybrid quantum systems.
- Arjun Iyer
- , Yadav P. Kandel
- & William H. Renninger
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Article
| Open AccessCavity-enhanced photon indistinguishability at room temperature and telecom wavelengths
Carbon nanotube-based single photon emitters allow for room-temperature operation, but suffer from vanishing indistinguishability due to strong dephasing. Following a theoretical proposal, the authors tackle the problem experimentally by using a cavity to enhance the photon coherence time and the emission spectral density in the regime of incoherent good cavity-coupling.
- Lukas Husel
- , Julian Trapp
- & Alexander Högele
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Article
| Open AccessFirefly-inspired bipolar information indication system actuated by white light
Inspired by fireflies, a bimodal information indication system using a photochemical afterglow material within a photonic crystal matrix is developed to display both static and changing information, such as sample type and degree of degradation.
- Hanwen Huang
- , Jiamiao Yin
- & Changchun Wang
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Article
| Open AccessSingle-photon detection using large-scale high-temperature MgB2 sensors at 20 K
Superconducting nanowire single-photon detectors require operation at T < 4 K, and successful attempts to extend their operation at 20 K and above using high-TC BSCCO flakes come at the cost of lower scalability to large areas. Here, the authors break this trade-off by using high-quality MgB2 films and exploiting a helium-ion beam-based irradiation process.
- Ilya Charaev
- , Emma K. Batson
- & Karl K. Berggren
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Article
| Open AccessFrequency comb generation via synchronous pumped χ(3) resonator on thin-film lithium niobate
Here the authors use on-chip amplitude and phase modulation to synchronously pump a resonator on thin-film lithium niobate for frequency comb generation. They find that pulsed pumping significantly mitigates stimulated Raman scattering and improves the overall efficiency of the device.
- Rebecca Cheng
- , Mengjie Yu
- & Marko Lončar
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Article
| Open AccessNonvolatile optical phase shift in ferroelectric hafnium zirconium oxide
The authors present nonvolatile optical phase shift induced by ferroelectric hafnium zirconium oxide deposited on a SiN waveguide. This finding paves the way for largescale programmable photonic circuits for communication, computing, and sensing.
- Kazuma Taki
- , Naoki Sekine
- & Mitsuru Takenaka
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Article
| Open AccessAnti-resonant acoustic waveguides enabled tailorable Brillouin scattering on chip
Achieving acoustic waveguides with low loss, tailorability, and easy fabrication is a considerable challenge. Here, the authors introduce suspended anti-resonant acoustic waveguides with superior confinement and high selectivity of acoustic modes, supporting both forward and backward SBS on chip.
- Peng Lei
- , Mingyu Xu
- & Xiaopeng Xie
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Article
| Open AccessMiniature computational spectrometer with a plasmonic nanoparticles-in-cavity microfilter array
Conventional spectrometers can be bulky and efforts are being made to develop miniaturised versions. Here, the authors present a miniature computational spectrometer based on silver nanoparticles in Fabry-Pérot microcavities for measuring visible spectra.
- Yangxi Zhang
- , Sheng Zhang
- & A. Ping Zhang
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Article
| Open AccessRevealing the spatial nature of sublattice symmetry
Sublattice symmetry has long been synonymous with chiral symmetry when it comes to topological classification. Here, the authors challenge this notion by systematically investigating sublattice symmetry and revealing its spatial nature with a precise description in terms of symmetry algebra and representation.
- Rong Xiao
- & Y. X. Zhao
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Article
| Open AccessControlling the broadband enhanced light chirality with L-shaped dielectric metamaterials
L-shaped silicon metamaterials are realized exhibiting broadband and enhanced chirality. The current work sets new benchmarks in the assembly of ultrathin dielectric chiral metamaterials that can efficiently control chiral light-matter interactions.
- Ufuk Kilic
- , Matthew Hilfiker
- & Christos Argyropoulos
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Article
| Open AccessA statistical resolution measure of fluorescence microscopy with finite photons
Abbe’s diffraction limit has been a defining concept for microscopy. With finite photon, photon noise remains one essential factor yet to be considered in the theoretical resolution limit. Here, the authors introduced information-based resolution limit allowing for photon-considered resolution assessment of various microscopy and super-resolution modalities.
- Yilun Li
- & Fang Huang
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| Open AccessArbitrary engineering of spatial caustics with 3D-printed metasurfaces
Caustics, as a unique type of singularity in wave phenomena, occur in diverse physical systems. Here, the authors realize multi-dimensional customization of caustics with 3D-printed metasurfaces. This arbitrary caustic engineering is poised to bring new revolutions to many domains.
- Xiaoyan Zhou
- , Hongtao Wang
- & Cheng-Wei Qiu
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Article
| Open AccessMulti-site integrated optical addressing of trapped ions
A promising strategy for scaling trapped-ion-based quantum technologies is to use fully integrated optical waveguides to deliver light to numerous ions at multiple sites. Here, the authors. optically address three ions using on-chip waveguides to deliver three distinct wavelengths per ion, and perform Rabi flopping on each ion simultaneously.
- Joonhyuk Kwon
- , William J. Setzer
- & Hayden J. McGuinness
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Article
| Open AccessDelayed room temperature phosphorescence enabled by phosphines
Room-temperature phosphorescence usually occurs immediately after the removal of excitation. Here the authors achieve combined instant and delayed phosphorescence through introduction of phosphines into carbazole emitters.
- Guang Lu
- , Jing Tan
- & Hui Xu
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Article
| Open AccessWaveguide-integrated twisted bilayer graphene photodetectors
Silicon-integrated graphene photodetectors exhibit promising bandwidths at telecom wavelengths, but their responsivity is usually limited. Here, the authors report the wafer-scale fabrication of waveguide-integrated detectors based on twisted bilayer graphene, showing responsivities up to 0.65 A/W and 3-dB bandwidths >65 GHz.
- Qinci Wu
- , Jun Qian
- & Hailin Peng
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Article
| Open AccessOptofluidic crystallithography for directed growth of single-crystalline halide perovskites
Precise and spatio-temporal control of crystallization kinetics is important but challenging. Here, the authors propose an optical strategy called optofluidic crystallithography to steer the growth of single-crystalline halide perovskites.
- Xue-Guang Chen
- , Linhan Lin
- & Hong-Bo Sun
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Article
| Open AccessBoosting organic phosphorescence in adaptive host-guest materials by hyperconjugation
Room-temperature phosphorescence is usually inefficient in purely organic material. Here, the authors achieve near-unity phosphorescence efficiency with color tunability in adaptive host-guest materials through use of hyperconjugation.
- Huili Ma
- , Lishun Fu
- & Wei Huang
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Article
| Open AccessIsostructural doping for organic persistent mechanoluminescence
Organic mechanoluminescent materials have potential in a range of applications, but it can be challenging to achieve long-lived emission. Here, the authors report isostructural doping as a strategy to achieve multicolour and high efficiency organic mechanoluminescence, applied in stress sensing.
- Zongliang Xie
- , Yufeng Xue
- & Bin Liu
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Article
| Open AccessParallel wavelength-division-multiplexed signal transmission and dispersion compensation enabled by soliton microcombs and microrings
The authors present a scalable on-chip parallel intensity modulation and direct detection (IM-DD) data transmission system. This system offers an aggregate line rate of 1.68 Tbit/s over a 20-km-long SMF. For the chromatic dispersion compensation of 40-km-SMFs, the energy consumption is ~0.3 pJ/bit, much less than the commercial 400G-ZR coherent transceivers counterparts.
- Yuanbin Liu
- , Hongyi Zhang
- & Andrew W. Poon
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Article
| Open AccessPhotonic time-crystalline behaviour mediated by phonon squeezing in Ta2NiSe5
Photonic time crystal refers to a material whose dielectric properties oscillate in time. Here the authors theoretically show such behaviour in the excitonic insulator candidate Ta2NiSe5 under optical excitation and use it to explain the enhanced THz reflectivity recently observed in pump-probe experiments
- Marios H. Michael
- , Sheikh Rubaiat Ul Haque
- & Eugene Demler
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Article
| Open AccessEmpowering high-dimensional optical fiber communications with integrated photonic processors
Leveraging photonic integration and photonic computing acceleration, Lu et al. proposed and demonstrated a scalable integrated silicon photonic processor that enables high-capacity optical fiber communications using various fiber spatial modes.
- Kaihang Lu
- , Zengqi Chen
- & Yeyu Tong
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Article
| Open AccessMemory-electroluminescence for multiple action-potentials combination in bio-inspired afferent nerves
In this work, a nanoscale light-emitting diode with memory-electroluminescence is demonstrated, which is used for mimicking the generation of multiple action-potentials and their combinations in bio-inspired afferent nerves.
- Kun Wang
- , Yitao Liao
- & Tae Whan Kim
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Article
| Open AccessHousehold alternating current electricity plug-and-play quantum-dot light-emitting diodes
Conventional lighting requires an AC-DC converter for LEDs. Here, the authors report a tandem structure by connecting two QLEDs with opposite polarity in parallel, enabling AC driven operation. A household AC electricity plug-and-play QLEDs panel with tuneable colour and brightness is achieved.
- Jiming Wang
- , Cuixia Yuan
- & Shuming Chen
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Article
| Open AccessDirect programming of confined surface phonon polariton resonators with the plasmonic phase-change material In3SbTe2
Tailored light-matter interaction can be achieved with surface phonon polaritons (SPhPs). Here, Conrads et al. employ the plasmonic phase-change material In3SbTe2 on the polar crystal SiC for direct programming of confined SPhP resonators and study their resonance modes via near-field microscopy.
- Lukas Conrads
- , Luis Schüler
- & Thomas Taubner
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Article
| Open AccessTransparent integrated pyroelectric-photovoltaic structure for photo-thermo hybrid power generation
The full potential of photoelectric devices can possibly be maximized through pyroelectricity for power generation beyond thermodynamic limit. Here, authors report photovoltaic heterostructure device with pyroelectric absorber, achieving 2.5 times more output power due to long-range electric field.
- Malkeshkumar Patel
- , Hyeong-Ho Park
- & Joondong Kim
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Article
| Open AccessNeural étendue expander for ultra-wide-angle high-fidelity holographic display
All holographic displays and imaging techniques are fundamentally limited by the étendue supported by existing spatial light modulators. Here, the authors report on using artificial intelligence (AI) to learn an étendue expanding element that effectively increases étendue by two orders of magnitude.
- Ethan Tseng
- , Grace Kuo
- & Felix Heide
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Article
| Open AccessElectrostatic steering of thermal emission with active metasurface control of delocalized modes
Dynamic angular tuning of thermal emission is a problem in the field of thermal metasurfaces. Here, the authors make a thermal emission device using electrostatic gates, opening an avenue for radiative heat management and mid-infrared communication.
- Joel Siegel
- , Shinho Kim
- & Victor Watson Brar
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Article
| Open AccessInkjet-printed optical interference filters
Optical interference filters are multilayer structures for controlling the propagation of electromagnetic waves. Jin et al. have developed a method of via inkjet printing to fabricate optical interference filters with commercially relevant quality with remarkable A4 paper size (29.7 × 21.0 cm²) in ambient conditions.
- Qihao Jin
- , Qiaoshuang Zhang
- & Uli Lemmer
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Article
| Open AccessHigh-throughput quantum photonic devices emitting indistinguishable photons in the telecom C-band
An efficient way of realising a large number of telecom single-photon emitters for quantum communication is still missing. Here, the authors use a wide-field imaging technique for fast localization of single InAs/InP quantum dots, which are then integrated into circular Bragg grating cavities featuring high single-photon purity and indistinguishability.
- Paweł Holewa
- , Daniel A. Vajner
- & Elizaveta Semenova
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Article
| Open AccessExciton polariton condensation from bound states in the continuum at room temperature
Bound states in continuum have attracted attention in various platforms, and recently condensation of bound states in continuum polariton modes was demonstrated at low temperatures. Here the authors report the observation of such a state in a periodic air-hole perovskite-based photonic crystal at room temperature.
- Xianxin Wu
- , Shuai Zhang
- & Xinfeng Liu
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Article
| Open AccessUltrastrong exciton-plasmon couplings in WS2 multilayers synthesized with a random multi-singular metasurface at room temperature
Here, the authors fabricate a metasurface with nanometre-sized plasmonic hotspots that interact coherently with WS2 excitons, achieving ultrastrong exciton-plasmon coupling.
- Tingting Wu
- , Chongwu Wang
- & Yu Luo
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Article
| Open AccessUltrafast photoluminescence and multiscale light amplification in nanoplasmonic cavity glass
This article presents a unique nanocomposite plasmonic-excitonic glass with extraordinary amplified optical properties: ultra-narrow photoluminescence (FWHM = 13 nm) and ultrashort photoluminescence lifetime (90 ps) at room temperature
- Piotr Piotrowski
- , Marta Buza
- & Dorota A. Pawlak
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Article
| Open AccessCorrelation-driven nonequilibrium exciton site transition in a WSe2/WS2 moiré supercell
Correlated insulator states of moire excitons in transition metal dichalcogenide heterostructures have attracted significant attention recently. Here the authors use time-resolved pump-probe spectroscopy to demonstrate the effects of non-equilibrium correlations of moire excitons in WSe2/WS2 heterobilayers.
- Jinjae Kim
- , Jiwon Park
- & Hyunyong Choi
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Article
| Open AccessAn optoacoustic field-programmable perceptron for recurrent neural networks
Optical recurrent neural networks present a unique challenge for photonic machine learning. Here, the authors experimentally show the first optoacoustic recurrent operator based on stimulated Brillouin scattering which may unlock a new class of optical neural networks with recurrent functionality.
- Steven Becker
- , Dirk Englund
- & Birgit Stiller
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Article
| Open AccessExtreme terahertz magnon multiplication induced by resonant magnetic pulse pairs
The authors demonstrate high-order terahertz nonlinear magnonics using two-dimensional coherent spectroscopy, revealing the emergence of seventh-order spin-wave mixing and sixth harmonic magnon generation within an antiferromagnetic orthoferrite.
- C. Huang
- , L. Luo
- & J. Wang
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Article
| Open AccessAll-silicon multidimensionally-encoded optical physical unclonable functions for integrated circuit anti-counterfeiting
The researchers introduce an all-silicon optical PUF that enhances IoT device security through CMOS-compatible fabrication, showcasing five unique optical responses per pixel for advanced authentication and high information entropy.
- Kun Wang
- , Jianwei Shi
- & Deren Yang
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Article
| Open AccessDynamic multicolor emissions of multimodal phosphors by Mn2+ trace doping in self-activated CaGa4O7
Achieving dynamic multimodal luminescence in a single material is promising but challenging. Here, the authors engineer a phosphor with dynamic multicolor luminescence and photo-thermomechanically responsive emissions by adding Mn2+ to a self-activated CaGa4O7 host.
- Yiqian Tang
- , Yiyu Cai
- & Jun-Cheng Zhang
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Article
| Open AccessOrigami metamaterials for ultra-wideband and large-depth reflection modulation
The researchers fuse metamaterials and origami technical to achieve ultra-wideband and large-depth reflection modulation. Flexible electronics amplify its lightweight, transparency, and cost-effectiveness, making it ideal for satellite communications.
- Zicheng Song
- , Juan-Feng Zhu
- & Cheng-Wei Qiu
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Article
| Open AccessBright, efficient, and stable pure-green hyperfluorescent organic light-emitting diodes by judicious molecular design
The device performance of pure-green hyperfluorescent organic light-emitting diodes remains unsatisfactory. Here, the authors report multi-resonance emitters with extended π−conjugation or increased donor strength, resulting in bright, efficient and stable pure-green hyperfluorescent devices.
- Yi-Ting Lee
- , Chin-Yiu Chan
- & Chihaya Adachi