Optics and photonics articles within Nature Communications

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  • Article
    | Open Access

    Most non-line-of-sight imaging requires scanned illumination, limiting applicability for dynamic scenes. Here the authors exploit occlusion and a sensor array to estimate locations and sizes of moving foreground objects and a static background map.

    • Sheila Seidel
    • , Hoover Rueda-Chacón
    •  & Vivek K Goyal

  • Article
    | Open Access

    The optical field inside a nanophotonic particle accelerator is revealed. To this end, the authors developed a field imaging technique for spatial and spectral resolution on the nanometer scale.

    • Tal Fishman
    • , Urs Haeusler
    •  & Ido Kaminer

  • Article
    | Open Access

    Gratings are used for pulse compression and stretching in chirped pulse amplification (CPA) or optical parametric CPA methods. Here the authors demonstrate ultra-broadband gold gratings that can compress single-cycle pulses with powers around 100 petawatts.

    • Yuxing Han
    • , Zhaoyang Li
    •  & Jianda Shao

  • Article
    | Open Access

    Exciton-polariton condensates are hybrid systems with nonlinear interactions. Here the authors demonstrate metamaterials with inter-site polariton coupling and asynchronous locking of light fluids from neighbor sites at the energy detuning.

    • D. L. Chafatinos
    • , A. S. Kuznetsov
    •  & A. Fainstein

  • Article
    | Open Access

    This report describes a 3D microelectrode array integrated on a thin-film flexible cable using traditional thin-film processing techniques and direct laser writing of 3D structures at micron resolution via two-photon lithography for neural recording.

    • Morgan A. Brown
    • , Kara M. Zappitelli
    •  & Timothy J. Gardner

  • Article
    | Open Access

    Optoacoustic super-resolution at millimeter-scale depths has been impeded by the strong background absorption from blood cells. Here, the authors use dichloromethane microdroplets with high optical absorption and demonstrate 3D microangiography of the mouse brain via optoacoustic localization.

    • Xosé Luís Deán-Ben
    • , Justine Robin
    •  & Daniel Razansky

  • Article
    | Open Access

    The authors develop a deep learning-based incoherent holographic camera system in order to deliver visually enhanced holograms in real-time. The neural network filters the noise in the captured holograms, and by integrating a holographic camera and a display, they demonstrate a holographic streaming system.

    • Hyeonseung Yu
    • , Youngrok Kim
    •  & Hong-Seok Lee

  • Article
    | Open Access

    The easy preparation of high efractive index transparent polymers is highly desirable owing to their interesting optoelectronic applications. Here, the authors apply an organobase catalyzed polymerization of bromoalkynes and dithiophenols to produce sulfur-containing all organic high refractive index polymers with excellent optical transparency.

    • Jie Zhang
    • , Tianwen Bai
    •  & Ben Zhong Tang

  • Article
    | Open Access

    Lithium niobate plays an important role in integrated photonics, but its widespread application requires a reliable solution. Here, the authors present a wafer-scale approach to LNOI integration via wafer bonding to silicon nitride PICs.

    • Mikhail Churaev
    • , Rui Ning Wang
    •  & Tobias J. Kippenberg

  • Article
    | Open Access

    Compact atomic clocks and atom interferometers are desired for on-chip integration. Here the authors demonstrate a chip-scale atomic beam of 87Rb atoms and its application as an atomic beam clock

    • Gabriela D. Martinez
    • , Chao Li
    •  & William R. McGehee

  • Article
    | Open Access

    Here, the authors demonstrate that the atomic motion induced by broadband laser pulses in a single graphene nanoribbon (GNR) can be tracked by femtosecond coherent anti-Stokes Raman spectroscopy (CARS) when performed in a scanning tunnelling microscope (STM).

    • Yang Luo
    • , Alberto Martin-Jimenez
    •  & Klaus Kern

  • Article
    | Open Access

    A microwave-rate soliton microcomb whose repetition rate can be modulated at 75 MHz. Moreover, the repetition rate can be locked to an external microwave reference by direct injection locking or feedback locking without external modulation.

    • Yang He
    • , Raymond Lopez-Rios
    •  & Qiang Lin

  • Article
    | Open Access

    Bound-states-in-the-continuum (BICs) display unique features like symmetry protection from dissipation, long lifetimes and topological charges. Here the authors demonstrate anisotropic Bogoliubov excitation spectrum of polariton condensate from a BIC using a patterned semiconductor GaAs/AlGaAs waveguide.

    • Anna Grudinina
    • , Maria Efthymiou-Tsironi
    •  & Nina Voronova

  • Article
    | Open Access

    Phase change materials (PCMs) are promising for low-power programmable photonic circuits. Here, authors show electrically controlled wide-bandgap PCM antimony sulfide achieving low loss, high cyclability and up to 32 levels, and post-fabrication trimming is also demonstrated.

    • Rui Chen
    • , Zhuoran Fang
    •  & Arka Majumdar

  • Article
    | Open Access

    The authors report a simple strategy to enable ultrahigh-Q guided-mode resonances by introducing a patterned perturbation layer on top of a multilayer-waveguide system. Such high-Q resonances are experimentally demonstrated with measured Q-factors up to 2.4 × 105.

    • Lujun Huang
    • , Rong Jin
    •  & Andrey E. Miroshnichenko

  • Article
    | Open Access

    Pump-probe spectroscopy is routinely used to interrogate ultrafast valence electronic and vibrational dynamics in complex systems. Here, the authors extend this technique to the X-ray regime using a sequence of femtosecond X-ray pulses to understand core-valence interactions in a solvated molecular complex.

    • Robert B. Weakly
    • , Chelsea E. Liekhus-Schmaltz
    •  & Munira Khalil

  • Article
    | Open Access

    Infrared polarization-sensitive photodetectors are attractive owing to their widespread applications. Here, the authors report a long-wave infrared photodetector with an ultrahigh polarization sensitivity by leveraging the 1D geometry of Tellurium nanoribbon and the finite-size effect of a perfect plasmonic absorber.

    • Mingjin Dai
    • , Chongwu Wang
    •  & Qi Jie Wang

  • Article
    | Open Access

    Phonons are the collective excitations of the lattice of a material, and can, in the case of chiral phonons, carry angular momentum, allowing for strong coupling to the magnetic properties of the material. Here, Cui, Bostrom and co-authors observe chiral magnon polarons, the hybridized quasiparticles of chiral phonons and magnons, in the van der Waals antiferromagnet FePSe3.

    • Jun Cui
    • , Emil Viñas Boström
    •  & Qi Zhang

  • Article
    | Open Access

    Squeezed light allows for quantum-enhanced, sub-shot-noise sensing, but its generation and use on a chip has so far remained elusive. Here, the authors fill this gap by demonstrating a thin-film lithium-niobate-based integrated quantum optical sensor, which beats shot-noise-limited SNR by ~ 4%.

    • Hubert S. Stokowski
    • , Timothy P. McKenna
    •  & Amir H. Safavi-Naeini

  • Article
    | Open Access

    The authors present a moving-parts-free approach for visualizing soliton motion in optical cavities that lifts the wavelength and speed constraints of contemporary pulsed laser diagnostic techniques.

    • Łukasz A. Sterczewski
    •  & Jarosław Sotor

  • Article
    | Open Access

    Silica glass is a high-performance material used in most branches of society from glassware and windows to optical lenses and fibers. Here, we develop a sintering-free method for 3D printing silica glass with sub-micrometer resolution and successfully demonstrate an optical microtoroid resonator.

    • Po-Han Huang
    • , Miku Laakso
    •  & Frank Niklaus

  • Article
    | Open Access

    Coherent Stokes Raman scattering (CSRS) has never been explored previously for chemical imaging due to a strong fluorescence background. Here, the authors demonstrate the first fluorescence-free CSRS laser scanning microscope and predict CSRS’ unique backscattering properties.

    • Sandro Heuke
    •  & Hervé Rigneault

  • Article
    | Open Access

    Here the authors propose for the first time the concept of supervised-evolving learning (SEL) and a corresponding SEL-driven adaptive focusing (SELAF) system. This metasurface can adaptively realize focusing at any specified position for waves incident from any direction. This work demonstrates unprecedented potential for tasks involving real-time, fast and complex electromagnetic wave manipulation.

    • Huan Lu
    • , Jiwei Zhao
    •  & Hongsheng Chen

  • Article
    | Open Access

    Traditional 2D cell culture platforms do not accurately reflect the physiology of human tumors. Here, authors combine bioprinting and high-speed live cell interferometry with machine learning to measure drug sensitivity at single-organoid resolution in a label-free manner.

    • Peyton J. Tebon
    • , Bowen Wang
    •  & Alice Soragni

  • Article
    | Open Access

    Optical singularities are typically 1D structures like vortices. This study used metasurfaces to position ten identical point singularities with tight confinement. This could miniaturize optical systems for super-resolution microscopy and dark traps.

    • Soon Wei Daniel Lim
    • , Joon-Suh Park
    •  & Federico Capasso

  • Article
    | Open Access

    The authors propose a confocal complemented signal-object collaborative regularization method for non-line-of-sight (NLOS) imaging without specific requirements on the spatial pattern of measurement points. The method extends the application range of NLOS imaging.

    • Xintong Liu
    • , Jianyu Wang
    •  & Lingyun Qiu

  • Article
    | Open Access

    Topological semimetals can host coexisting higher-order topological nodes that may enable unique physical properties. Here, based on these topological principles, authors design and experimentally realise simultaneous massive and massless chiral quasiparticles in a photonic microring lattice.

    • Zihe Gao
    • , Haoqi Zhao
    •  & Liang Feng

  • Article
    | Open Access

    The sparse, noisy, and distorted raw photon data captured by single-photon cameras make it difficult to estimate scene properties under challenging illumination conditions. Here, the authors present Collaborative photon processing for Active Single-Photon Imaging (CASPI), a technology-agnostic, application-agnostic, and training-free photon processing pipeline for high-resolution single-photon cameras.

    • Jongho Lee
    • , Atul Ingle
    •  & Mohit Gupta

  • Article
    | Open Access

    Creating compact, lightweight and powerful optics that work well under visible light has been challenging. Here, the authors 3D print optically transparent polymers inside nanoporous glass in order to densely integrate refractive and diffractive elements, forming thin, high-performance hybrid achromatic imaging micro-optics.

    • Corey A. Richards
    • , Christian R. Ocier
    •  & Paul V. Braun

  • Article
    | Open Access

    Ultracold atoms are generated in the lab using optical trapping and cooling. Here the authors implement a fiber-coupled photonic integrated circuit for a beam delivery to a three-dimensional magneto-optical trap where greater than 1 million rubidium atoms are cooled near 200 μK.

    • Andrei Isichenko
    • , Nitesh Chauhan
    •  & Daniel J. Blumenthal

  • Article
    | Open Access

    Illuminating internal organs and tissues with high controllability and adaptability remains challenging. Here the authors present a flexible, biodegradable photonic device called iCarP for large area, high intensity, wide spectrum, deeply penetrating, continuous or pulsatile illumination.

    • Kaicheng Deng
    • , Yao Tang
    •  & Yang Zhu

  • Article
    | Open Access

    This study presents a deep learning pipeline to automatically locate and count large herds of migratory ungulates (wildebeest and zebra) in the Serengeti-Mara ecosystem using fine resolution satellite imagery. The results achieve accurate detection of nearly 500,000 individuals across thousands of square kilometers and multiple habitat types.

    • Zijing Wu
    • , Ce Zhang
    •  & Tiejun Wang

  • Article
    | Open Access

    Phototunable full-color circularly polarized luminescence (CPL) features large storage density which is important for the field of information encryption and decryption. Here, the authors present a device-friendly solid film with color-tunability by employing Förster resonance energy transfer among a chiral donor and achiral molecular switches in a liquid crystal photonic capsules.

    • Siyang Lin
    • , Yuqi Tang
    •  & Quan Li

  • Article
    | Open Access

    In most optical computing schemes, the size of the chip increases quadratically with the problem size. Here, the authors demonstrate an architecture for optical convolutional neural networks which, while losing the independent reconfigurability of the kernels, allows for linear scaling of the circuit size.

    • Xiangyan Meng
    • , Guojie Zhang
    •  & Ming Li

  • Article
    | Open Access

    Hybrid photonic–electronic systems are essential for high-throughput neuromorphic computing. Here, the authors report an in-memory photonic–electronic dot-product engine with decoupled electronic programming of the phase-change memory cells and parallel photonic computation with high-bit operation, low energy consumption, and high accuracy.

    • Wen Zhou
    • , Bowei Dong
    •  & Harish Bhaskaran

  • Article
    | Open Access

    A new form of directional polaritons, leaky in nature and featuring lenticular dispersion contours, is experimentally observed both in near-field and through prism excitation, unveiling opportunities stemming from the interplay of extreme anisotropic responses, light confinement and directional radiation leakage.

    • Xiang Ni
    • , Giulia Carini
    •  & Andrea Alù

  • Article
    | Open Access

    Multi-frame super-resolution microscopy is hampered by long acquisition times and phototoxicity, which hinder its use for live-cell imaging. Here, authors propose a deep-learning-based single-frame super-resolution approach to image cellular dynamics with high spatiotemporal resolution.

    • Rong Chen
    • , Xiao Tang
    •  & Shuhuai Yao

  • Article
    | Open Access

    Spontaneous Raman scattering is classically understood as an incoherent process. Here, the authors demonstrate that macroscopic quantum coherence among billions of vibrating molecules in a liquid is generated when single photon detection and single spatio-temporal mode excitation are implemented.

    • Valeria Vento
    • , Santiago Tarrago Velez
    •  & Christophe Galland

  • Article
    | Open Access

    Periodic perturbations and guided mode engineering into Brillouin zone folding-induced bound states in the continuum resulted in ultrahigh Q factors that are both robust and sustainable across a broad range of tunable momentum space.

    • Wenhao Wang
    • , Yogesh Kumar Srivastava
    •  & Ranjan Singh

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