Other photonics articles within Nature Communications

Featured

  • Article
    | Open Access

    ‘Giant atom’ physics occurs when the size of the atomic system becomes comparable to the wavelength of the light it interacts with. For atoms, such a regime is impossible to reach, however, for artificial atomic systems such ‘giant atom’ physics can be explored. Here, Wang et al demonstrate giant spin ensembles, consisting of magnetic spheres coupled to a microwave waveguide.

    • Zi-Qi Wang
    • , Yi-Pu Wang
    •  & J. Q. You
  • Article
    | Open Access

    Light-matter interaction can induce changes to the properties of the system by creating hybrid collective states of light and molecular excitations, the so called polaritons. Here the authors use femtosecond pump-probe spectroscopy to explore exciton-polariton dynamics in a photosynthetic protein, light harvesting 2 complexes, and find evidence for rapid energy transfer to dark polariton states.

    • Fan Wu
    • , Daniel Finkelstein-Shapiro
    •  & Tönu Pullerits
  • Article
    | Open Access

    Extending the control over topological system will open the doors to both fundamental studies and applications. Here the authors demonstrate thouless topological transport of light in a bulk tunable moiré lattice.

    • Peng Wang
    • , Qidong Fu
    •  & Fangwei Ye
  • Article
    | Open Access

    We show frequency domain mirrors that provide reflections of optical mode propagation in the frequency domain. We theoretically investigated the mirror properties and experimentally demonstrate it using polarization and coupled-resonator-based coupling on thin film Lithium Niobate.

    • Yaowen Hu
    • , Mengjie Yu
    •  & Marko Lončar
  • Article
    | Open Access

    Synthetic lattice systems are powerful platforms for studying the influence of intrinsic nonlinearities on topological phenomena. Here the authors elucidate the topological transport of solitons in terms of Wannier functions displacement and they introduce a nonlinearity-induced topological transport effect that could be observed in ultracold quantum mixtures.

    • Nader Mostaan
    • , Fabian Grusdt
    •  & Nathan Goldman
  • Article
    | Open Access

    Here, the authors find the missing link for soliton microcombs that exist at the boundary where the group velocity dispersion of light changes sign: zero-dispersion solitons. The resulting microresonator frequency comb, based in Si3N4, spans almost an octave.

    • Miles H. Anderson
    • , Wenle Weng
    •  & Tobias J. Kippenberg
  • Article
    | Open Access

    Propagation-invariant wave packets confined in space and time can be useful for optical sensing, imaging, and nonlinear and quantum optics. Here the authors demonstrate control over the angular dispersion of optical wave packets in two-transverse dimensions to synthesize space-time wave packets localized in all dimensions.

    • Murat Yessenov
    • , Justin Free
    •  & Ayman F. Abouraddy
  • Article
    | Open Access

    Optoacoustic imaging is mostly performed in the time domain. Here the authors demonstrate frequency wavelength multiplexed optoacoustic tomography that can operate at multiple wavelengths simultaneously and offers signal-to-noise ratio advantages over time domain methods.

    • Antonios Stylogiannis
    • , Ludwig Prade
    •  & Vasilis Ntziachristos
  • Article
    | Open Access

    Full tomography of biphoton frequency comb states requires frequency mixing operations which are hard to scale. Here, the authors propose and demonstrate a protocol exploiting advanced Bayesian statistical methods and randomized measurements coming from complex mode mixing in electro-optic phase modulators.

    • Hsuan-Hao Lu
    • , Karthik V. Myilswamy
    •  & Joseph M. Lukens
  • Article
    | Open Access

    There is a need to control molecular activities at high spatial precision. Here the authors report a real-time precision opto-control technology that detects a chemical-specific optical response from molecular targets, and precisely control photoswitchable microtubule polymerization inhibitors in cells.

    • Matthew G. Clark
    • , Gil A. Gonzalez
    •  & Chi Zhang
  • Article
    | Open Access

    A label-free sensing method has been developed for identifying hazardous pathogens based on their intrinsic properties. This was possible by interrogating the temperature-dependent dielectric constant of the microbes in the far-infrared range.

    • S. W. Jun
    •  & Y. H. Ahn
  • Article
    | Open Access

    The exploration of topological boundary effects is one of the important aspects that could foster the development of future topological photonics devices. Here the authors propose a straightforward method to construct sharp boundaries in synthetic dimensions using a modulated ring resonator strongly coupled to an auxiliary ring.

    • Avik Dutt
    • , Luqi Yuan
    •  & Shanhui Fan
  • Article
    | Open Access

    Unsuspended optomechanical systems might enable unique applications for quantum sensing and transduction. Here, the authors demonstrate a two-dimensional slab-on-substrate optomechanical crystal empowered by mechanical bound states in the continuum.

    • Shengyan Liu
    • , Hao Tong
    •  & Kejie Fang
  • Article
    | Open Access

    Understanding noise dynamics in frequency combs is crucial for applications. Here, the authors study the phase noise dynamics and the linewidth of soliton microcombs, revealing that some comb lines can be more quiet than the pump laser itself.

    • Fuchuan Lei
    • , Zhichao Ye
    •  & Victor Torres-Company
  • Article
    | Open Access

    A Kerr-nonlinear resonator with normal dispersion supports bright and dark pulse states. With photonic crystal ring resonators, this work demonstrates a continuum across these nonlinear states and explores the underlying mechanism.

    • Su-Peng Yu
    • , Erwan Lucas
    •  & Scott B. Papp
  • Article
    | Open Access

    Mirrors that demonstrate 98% reflectivity and withstand 10 kilowatts of focused continuous-wave laser light are created by nanoscale fabrication of single-crystal diamond. The work finds applications in medicine, defence, industry, and communications.

    • Haig A. Atikian
    • , Neil Sinclair
    •  & Marko Lončar
  • Article
    | Open Access

    ’Here the authors provide the demonstration of platicon comb generation in an integrated photonic chip using laser self-injection locking, They take advantage of platicons generation in normal GVD resonators, which significantly relaxes the material and geometry design restrictions

    • Grigory Lihachev
    • , Wenle Weng
    •  & Tobias J. Kippenberg
  • Article
    | Open Access

    High-resolution photoacoustic tomography is challenging due to reduced efficiency of miniaturized piezoelectric elements. Here, the authors fabricate a miniaturized silicon-photonics acoustic detector coated with a sensitivity-enhancing elastomer, and demonstrate high-resolution in vivo imaging.

    • Yoav Hazan
    • , Ahiad Levi
    •  & Amir Rosenthal
  • Article
    | Open Access

    Optical microcavities are useful as probes in cells due to their narrow emission spectra and high sensitivity to environment. Here, the authors use the unique spectral features of microcavities, which are unaffected by tissue scattering, and show 3D localisation and tracking of cells deep in tissues.

    • Aljaž Kavčič
    • , Maja Garvas
    •  & Matjaž Humar
  • Article
    | Open Access

    The authors introduce an accurate, fast and efficient technique to analyze sensory data. They use a continuous wavelet transform concept to look for certain patterns in noisy raw data. The superiority of this approach is demonstrated with fluorescence signals from a chip-based, optofluidic single particle sensor.

    • Vahid Ganjalizadeh
    • , Gopikrishnan G. Meena
    •  & Holger Schmidt
  • Article
    | Open Access

    Discrete time crystals are described by a subharmonic response with respect to an external drive and have been mostly observed in closed periodically-driven systems. Here, the authors demonstrate a dissipative discrete time crystal in a Kerr-nonlinear optical microcavity pumped by two lasers.

    • Hossein Taheri
    • , Andrey B. Matsko
    •  & Krzysztof Sacha
  • Comment
    | Open Access

    Among the existing machine learning frameworks, reservoir computing demonstrates fast and low-cost training, and its suitability for implementation in various physical systems. This Comment reports on how aspects of reservoir computing can be applied to classical forecasting methods to accelerate the learning process, and highlights a new approach that makes the hardware implementation of traditional machine learning algorithms practicable in electronic and photonic systems.

    • Lina Jaurigue
    •  & Kathy Lüdge
  • Article
    | Open Access

    Precision measurement plays an important role in frequency metrology and optical communications. Here the authors compare two geographically separate ultrastable lasers at 7 × 10−17 fractional frequency instability over a 2220 km optical fibre link and these measurements can be useful for dissemination of ultrastable light to distant optical clocks.

    • M. Schioppo
    • , J. Kronjäger
    •  & G. Grosche
  • Article
    | Open Access

    Exploiting technologies derived from the optical clocks community, the authors demonstrate a setup for twin-field QKD which extends the coherence times by three orders of magnitude, overcoming the main challenge towards real-world implementation.

    • Cecilia Clivati
    • , Alice Meda
    •  & Davide Calonico
  • Article
    | Open Access

    A travelling wave inside a metal slit can reveal its own waveform by probing deflecting motions of charged particles. Here, a real-time THz oscilloscope was demonstrated by utilizing the relativistic electrons and the subwavelength slit waveguide.

    • In Hyung Baek
    • , Hyun Woo Kim
    •  & Young Uk Jeong
  • Article
    | Open Access

    Fluorescent imaging in the second biological window has advantages for in vivo applications. Here, the authors synthesise a molecular nanoprobe which activates upon binding H2O2, generating both strong fluorescent NIR-II emission and ultrasound signal for multi-mode imaging of inflammatory diseases.

    • Junjie Chen
    • , Longqi Chen
    •  & Yanli Zhao
  • Article
    | Open Access

    Chip-based architectures for mid-infrared gas sensing could enable many applications. In this direction, the authors demonstrate a microcomb-based dual-comb spectroscopy sensor with GHz resolution in the mid-IR band, with stability completely determined by a single high-Q microresonator.

    • Chengying Bao
    • , Zhiquan Yuan
    •  & Kerry J. Vahala
  • Article
    | Open Access

    Insect-like biomimetic compound eyes have many technological applications. Here, the authors present a facile fabrication scheme involving microfluidics assisted 3D printing that permits to completely separate design, optimization and construction of optical and sensor components.

    • Bo Dai
    • , Liang Zhang
    •  & Dawei Zhang
  • Article
    | Open Access

    Engineered stop bands to sense an ambient environment can enable many applications. Here, the authors demonstrate well-controlled processes to open high-aspect ratio nanoholes through optical fibre for Bragg gratings in the telecomm spectrum and to enable high-resolution refractive index sensing

    • Keivan Mahmoud Aghdami
    • , Abdullah Rahnama
    •  & Peter R. Herman
  • Article
    | Open Access

    Generally, wavefronts are measured using angle-based sensors like the Shack-Hartmann sensor. Here, the authors present an angle-sensitive device that uses flat optics integrated on a focal plane array for compact wavefront sensing with improved resolution.

    • Soongyu Yi
    • , Jin Xiang
    •  & Zongfu Yu
  • Article
    | Open Access

    Light-driven micromotors can convert energy to motion in sub-millimeter dimensions. Here, the authors extend this concept and introduce reconfigurable micromachines with multiple components, driven by optoelectronic tweezers, and demonstrate new functionalities.

    • Shuailong Zhang
    • , Mohamed Elsayed
    •  & Aaron R. Wheeler
  • Article
    | Open Access

    Microcombs operating in the deterministic quantum regime could lead to new applications. Here, the authors demonstrate a quantum microcomb consisting of 20 two-mode squeezed comb pairs, in an optical microresonator on a silicon chip.

    • Zijiao Yang
    • , Mandana Jahanbozorgi
    •  & Xu Yi
  • Article
    | Open Access

    In this work the authors demonstrate on-chip integration of Brillouin lasing operating at visible wavelengths, with engineered design for stable output. This technical and scientific advance will help develop integrated light sources for quantum computing or atomic and molecular spectroscopy.

    • Nitesh Chauhan
    • , Andrei Isichenko
    •  & Daniel J. Blumenthal
  • Article
    | Open Access

    Frequency-comb-based multiheterodyne spectroscopy requires that total bandwidth of the measured spectrum covers less than half the comb spacing, which is usually not the case for incoherent spectra. Here, the authors propose a technique that lifts this requirement, and demonstrate it in the microwave regime.

    • David J. Benirschke
    • , Ningren Han
    •  & David Burghoff
  • Article
    | Open Access

    Metasurfaces allow for vast possibilities of light control. Here, the authors demonstrate on-demand engineering and realization of a broad family of two-dimensional phase singularity sheets and transverse polarization singularity sheets, opening up new aspects of light-matter interaction.

    • Soon Wei Daniel Lim
    • , Joon-Suh Park
    •  & Federico Capasso
  • Article
    | Open Access

    The Doppler effect is a wave phenomenon that can find the magnitude of velocity of moving targets with scalar waves. Here, the authors use vectorially structured light with spatially variant polarization to fully determine both the magnitude of velocity and motion direction of a moving particle.

    • Liang Fang
    • , Zhenyu Wan
    •  & Jian Wang