Featured
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Dispersion-assisted high-dimensional photodetector
By combining spatial and frequency dispersive thin-film interfaces with deep residual learning, a miniature photodetector allowing the acquisition of high-dimensional information on light in a single-shot fashion is described.
- Yandong Fan
- , Weian Huang
- & Wei Li
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Article |
All-optical subcycle microscopy on atomic length scales
All-optical subcycle microscopy is achieved on atomic length scales, with picometric spatial and femtosecond temporal resolution.
- T. Siday
- , J. Hayes
- & R. Huber
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Article
| Open AccessLithium tantalate photonic integrated circuits for volume manufacturing
Electro-optical photonic integrated circuits based on lithium tantalate perform as well as current state-of-the-art ones using lithium niobate but the material has the advantage of existing commercial uses in consumer electronics, easing the problem of scalability.
- Chengli Wang
- , Zihan Li
- & Tobias J. Kippenberg
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Valleytronics in bulk MoS2 with a topologic optical field
We develop an optical method that can set and read the state of electrons in the valley polarization of bulk transition metal dichalcogenide semiconductors, with potential utility as digital storage at quantum coherent timescales and application in quantum computing.
- Igor Tyulnev
- , Álvaro Jiménez-Galán
- & Jens Biegert
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Digital colloid-enhanced Raman spectroscopy by single-molecule counting
Research published in Nature shows that surface-enhanced Raman spectroscopy carried out with colloids can quantify a range of molecules down to concentrations at the femtomolar level.
- Xinyuan Bi
- , Daniel M. Czajkowsky
- & Jian Ye
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Evidence for chiral graviton modes in fractional quantum Hall liquids
Through inelastic light scattering chiral spin-2 long-wavelength magnetorotons are observed, revealing chiral graviton modes in fractional quantum Hall states and aiding in understanding the quantum metric impacts in topological correlated systems.
- Jiehui Liang
- , Ziyu Liu
- & Aron Pinczuk
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Article
| Open AccessNear-ultraviolet photon-counting dual-comb spectroscopy
We demonstrate a photon-counting approach that extends the unique advantages of spectroscopy with interfering frequency combs into regions where nonlinear frequency conversion tends to be very inefficient, providing a step towards precision broadband spectroscopy at short wavelengths and extreme-ultraviolet dual-comb spectroscopy.
- Bingxin Xu
- , Zaijun Chen
- & Nathalie Picqué
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Article
| Open AccessLogical quantum processor based on reconfigurable atom arrays
A programmable quantum processor based on encoded logical qubits operating with up to 280 physical qubits is described, in which improvement of algorithmic performance using a variety of error-correction codes is enabled.
- Dolev Bluvstein
- , Simon J. Evered
- & Mikhail D. Lukin
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A superconducting nanowire single-photon camera with 400,000 pixels
The development of a 400,000-pixel superconducting nanowire single-photon detector array is described, improving the current state of the art by a factor of 400 and showing scalability well beyond the present demonstration.
- B. G. Oripov
- , D. S. Rampini
- & A. N. McCaughan
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Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering
Three-dimensional imaging using a frequency–angular resolving and frequency-modulated continuous-wave LiDAR enabled by a chip-scale acousto-optic beam-steering device has been demonstrated, with the simplicity and low cost of the device making this a promising technology.
- Bingzhao Li
- , Qixuan Lin
- & Mo Li
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Article
| Open AccessDynamic optical response of solids following 1-fs-scale photoinjection
Petahertz-scale optical-field metrology in a pump-probe setting enables the direct observation of how the optical properties of a medium evolve after 1-fs-scale photoinjection.
- Dmitry A. Zimin
- , Nicholas Karpowicz
- & Vladislav S. Yakovlev
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Article |
Observation of the radiative decay of the 229Th nuclear clock isomer
The authors report on the radiative decay of a low-energy isomer in thorium-229 (229mTh), which has consequences for the design of a future nuclear clock and eases the search for direct laser excitation of the atomic nucleus.
- Sandro Kraemer
- , Janni Moens
- & Ulrich Wahl
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Article
| Open AccessX-ray-to-visible light-field detection through pixelated colour conversion
Lithographically patterned perovskite nanocrystal arrays were used to determine radiation vectors from X-rays to visible light and the emission colours of the nanoparticles was used to create images of three-dimensional objects and for phase-contrast imaging.
- Luying Yi
- , Bo Hou
- & Xiaogang Liu
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Article
| Open AccessAn integrated imaging sensor for aberration-corrected 3D photography
A meta-imaging sensor detects an extra-fine 4D light field distribution using a vibrating microlens array, enabling high-resolution 3D photography up to a gigapixel with fast aberration correction, demonstrated on a telescope aimed at the Moon.
- Jiamin Wu
- , Yuduo Guo
- & Qionghai Dai
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The time-programmable frequency comb and its use in quantum-limited ranging
A self-referenced optical frequency comb with digital electronics is used for real-time attosecond control of the comb’s pulse train, and can be used in quantum-limited sensing.
- Emily D. Caldwell
- , Laura C. Sinclair
- & Jean-Daniel Deschenes
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Article
| Open AccessA large-scale microelectromechanical-systems-based silicon photonics LiDAR
A large focal plane switch array is constructed to steer the laser beam of a LiDAR system, leading to 3D imaging with 16,384 pixels, improving the resolution and coverage of solid-state LiDARs.
- Xiaosheng Zhang
- , Kyungmok Kwon
- & Ming C. Wu
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Article
| Open AccessHyperbolic shear polaritons in low-symmetry crystals
Shear phenomena in the infrared dielectric response of a monoclinic crystal are shown to unveil a new polariton class termed hyperbolic shear polariton that can emerge in any low-symmetry monoclinic or triclinic system.
- Nikolai C. Passler
- , Xiang Ni
- & Alexander Paarmann
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Article |
Multiview confocal super-resolution microscopy
A combination of multiview imaging, structured illumination, reconstruction algorithms and deep-learning predictions realizes spatial- and temporal-resolution improvements in fluorescence microscopy to produce super-resolution images from diffraction-limited input images.
- Yicong Wu
- , Xiaofei Han
- & Hari Shroff
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Operando optical tracking of single-particle ion dynamics in batteries
The dynamics of ions within a working lithium-ion battery are examined using optical interferometric scattering microscopy, which allows ion transport to be related to phase transitions and microstructural features.
- Alice J. Merryweather
- , Christoph Schnedermann
- & Akshay Rao
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Quantum-enhanced nonlinear microscopy
A quantum microscope obtains signal-to-noise beyond the photodamage limits of conventional microscopy, revealing biological structures within cells that would not otherwise be resolved.
- Catxere A. Casacio
- , Lars S. Madsen
- & Warwick P. Bowen
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Towards real-time photorealistic 3D holography with deep neural networks
A deep-learning-based approach using a convolutional neural network is used to synthesize photorealistic colour three-dimensional holograms from a single RGB-depth image in real time, and termed tensor holography.
- Liang Shi
- , Beichen Li
- & Wojciech Matusik
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Article |
Experimental demonstration of the mechanism of steady-state microbunching
The mechanism of steady-state electron microbunching is demonstrated, providing a basis that will enable its full implementation in electron storage rings to generate high-repetition, high-power coherent radiation.
- Xiujie Deng
- , Alexander Chao
- & Lixin Yan
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A universal 3D imaging sensor on a silicon photonics platform
A compact, high-performance silicon photonics-based light detection and ranging system for three-dimensional imaging is developed that should be amenable to low-cost mass manufacturing
- Christopher Rogers
- , Alexander Y. Piggott
- & Remus Nicolaescu
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Design of biologically active binary protein 2D materials
Design of a two-component protein array enables robust formation of complex large-scale ordered biologically active materials.
- Ariel J. Ben-Sasson
- , Joseph L. Watson
- & David Baker
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A submicrometre silicon-on-insulator resonator for ultrasound detection
The widely available silicon-on-insulator technology is used to develop a miniaturized ultrasound detector, which is 200 times smaller than the wavelengths of sound that it can detect.
- Rami Shnaiderman
- , Georg Wissmeyer
- & Vasilis Ntziachristos
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Article |
Coherent interaction between free electrons and a photonic cavity
The strong interaction of coherent free electrons with a photonic-crystal cavity enables the measurement of the lifetimes of the cavity modes and provides a technique for multidimensional near-field imaging and spectroscopy.
- Kangpeng Wang
- , Raphael Dahan
- & Ido Kaminer
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Article |
Massively parallel coherent laser ranging using a soliton microcomb
A massively parallel coherent light detection and ranging (lidar) scheme using a soliton microcomb—a light source that emits a wide spectrum of sharp lines with equally spaced frequencies—is described.
- Johann Riemensberger
- , Anton Lukashchuk
- & Tobias J. Kippenberg
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Field-resolved infrared spectroscopy of biological systems
A vibrational spectroscopy technique that measures the electric field emitted from organic molecules following infrared illumination allows their molecular fingerprints to be separated from the excitation background, even in complex biological samples.
- Ioachim Pupeza
- , Marinus Huber
- & Ferenc Krausz
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Letter |
Non-line-of-sight imaging using phasor-field virtual wave optics
Algorithms based on diffractive wave propagation of light offer effective imaging of complex scenes hidden from direct view.
- Xiaochun Liu
- , Ibón Guillén
- & Andreas Velten
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Letter |
Structural colour using organized microfibrillation in glassy polymer films
Standing-wave optics can be used to control microfibril and cavity formation in polymer films and the resulting porous layered structures can produce tunable structural colour, enabling inkless ‘printing’ of images.
- Masateru M. Ito
- , Andrew H. Gibbons
- & Easan Sivaniah
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Letter |
Computational periscopy with an ordinary digital camera
A faint penumbra in a photograph of a diffuse surface enables recovery of the position of the object creating the penumbra and an image of the scene behind it.
- Charles Saunders
- , John Murray-Bruce
- & Vivek K Goyal
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Article |
Measurement-based quantum control of mechanical motion
The displacement of a mechanical resonator is measured to within 35% of the Heisenberg uncertainty limit, enabling feedback cooling to the quantum ground state, nine decibels below the quantum-backaction limit.
- Massimiliano Rossi
- , David Mason
- & Albert Schliesser
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Letter |
Confocal non-line-of-sight imaging based on the light-cone transform
A confocal scanning technique solves the reconstruction problem of non-line-of-sight imaging to give fast and high-quality reconstructions of hidden objects.
- Matthew O’Toole
- , David B. Lindell
- & Gordon Wetzstein
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Letter |
Electromechanical vortex filaments during cardiac fibrillation
Using optical mapping and 3D ultrasound, the dynamics and interactions between electrical and mechanical phase singularities were analysed by simultaneously measuring the membrane potential, intracellular calcium concentration and mechanical contractions of the heart during normal rhythm and fibrillation.
- J. Christoph
- , M. Chebbok
- & S. Luther
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Letter |
Enhanced sensitivity at higher-order exceptional points
The response of a ternary, parity–time-symmetric system that exhibits a third-order exceptional point increases as a function of the cube-root of induced perturbations.
- Hossein Hodaei
- , Absar U. Hassan
- & Mercedeh Khajavikhan
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Letter |
Exceptional points enhance sensing in an optical microcavity
Tuning optical microcavities to exceptional points enhances their ability to sense nanoscale objects, owing to the topological features of exceptional points.
- Weijian Chen
- , Şahin Kaya Özdemir
- & Lan Yang
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Letter |
Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit
Magneto-optical Kerr effect microscopy is used to show that monolayer chromium triiodide is an Ising ferromagnet with out-of-plane spin orientation.
- Bevin Huang
- , Genevieve Clark
- & Xiaodong Xu
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Letter |
The effect of illumination on the formation of metal halide perovskite films
Films of metal halide perovskite are used as the absorber material in solar cells, and light irradiation during their formation is shown to affect their crystallization, morphology and photovoltaic performance.
- Amita Ummadisingu
- , Ludmilla Steier
- & Michael Grätzel
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Letter |
Super-multiplex vibrational imaging
Stimulated Raman scattering under electronic pre-resonance conditions, combined with a new palette of probes, enables super-multiplex imaging of molecular targets in living cells with very high vibrational selectivity and sensitivity.
- Lu Wei
- , Zhixing Chen
- & Wei Min
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Alternative modes of client binding enable functional plasticity of Hsp70
Hsp70 binds unfolded protein segments in its groove, but can also bind and stabilize folded protein structures, owing to its moveable lid, with ATP hydrolysis and co-chaperones allowing control of these contrasting effects.
- Alireza Mashaghi
- , Sergey Bezrukavnikov
- & Sander J. Tans
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Demonstration of a small programmable quantum computer with atomic qubits
A small programmable quantum computer is demonstrated that uses five trapped ions as qubits; the computer is reconfigurable and different algorithms can be compiled without changing the hardware.
- S. Debnath
- , N. M. Linke
- & C. Monroe
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Continuous probing of cold complex molecules with infrared frequency comb spectroscopy
Combining cavity-enhanced direct frequency comb spectroscopy with buffer gas cooling enables rapid collection of well-resolved infrared spectra for molecules such as nitromethane, naphthalene and adamantane, confirming the value of the combined approach for studying much larger and more complex molecules than have been probed so far.
- Ben Spaun
- , P. Bryan Changala
- & Jun Ye
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Six-dimensional real and reciprocal space small-angle X-ray scattering tomography
A small-angle X-ray scattering computed tomography method that reduces the amount of data that needs to be collected and analysed to reconstruct the three-dimensional scattering distribution in reciprocal space of a three-dimensional sample in real space is demonstrated by measuring the orientation of collagen fibres within a human tooth.
- Florian Schaff
- , Martin Bech
- & Franz Pfeiffer
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Single-shot compressed ultrafast photography at one hundred billion frames per second
A technique based on compressed imaging with a streak camera is reported that can videotape transient events in two dimensions with temporal resolution down to tens of picoseconds, and its usefulness is demonstrated using single laser shots applied to a variety of physical phenomena.
- Liang Gao
- , Jinyang Liang
- & Lihong V. Wang
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Letter |
Direct measurement of local oxygen concentration in the bone marrow of live animals
Here, using two-photon phosphorescence lifetime microscopy, the local oxygen tension in the bone marrow of live mice is found to be quite low, with spatiotemporal variations depending on the blood vessel type, distance to the endosteum, and changes in cellularity after stress.
- Joel A. Spencer
- , Francesca Ferraro
- & Charles P. Lin
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Outlook |
Q&A: A man of many dimensions
Richard R. Ernst pioneered one- and two-dimensional nuclear magnetic resonance (NMR), and talks to Stephanie Harris about why dimensions are important in life as well as in science.
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Letter |
Coherent Raman spectro-imaging with laser frequency combs
A new multiplex technique of coherent anti-Stokes Raman spectro-imaging with two laser frequency combs is shown to record molecular spectra of broad bandwidth on a microsecond scale.
- Takuro Ideguchi
- , Simon Holzner
- & Theodor W. Hänsch
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Research Highlights |
Technology for thinner probes
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News |
Giant Sun scope clears final hurdle
Hawaiian solar observatory granted construction permit despite local objections.
- Eric Hand