Microresonators articles within Nature Communications

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  • Article
    | Open Access

    Here the authors induce asymmetric transmission in planar Fabry–Pérot microcavities by embedding organic thin films exhibiting apparent circular dichroism (ACD), an optical phenomenon based on 2D chirality.

    • Tzu-Ling Chen
    • , Andrew Salij
    •  & Randall H. Goldsmith

  • Article
    | Open Access

    The authors showcase a five-channel silicon microring modulator array with a total data rate in the terabit range. Each microring is equipped with two separate Z-shape junctions to overcome the bandwidth and modulation efficiency trade-off, providing a pathway for future 200 Gb/s/lane silicon optical interconnects.

    • Yuan Yuan
    • , Yiwei Peng
    •  & Raymond G. Beausoleil

  • Article
    | Open Access

    Multifunctional active mid-infrared ring resonators and directional couplers with quantum cascade laser cores allow electrical control of resonant frequency and quality factors, tunable filtering and frequency comb generation.

    • Dmitry Kazakov
    • , Theodore P. Letsou
    •  & Federico Capasso

  • Article
    | Open Access

    Authors showcase 3D direct laser writing to fabricate optically interfaced mechanical resonators. The membrane-type structures are placed inside fiber Fabry-Perot cavities to realize a miniaturized optical cavity. Further, the optomechanical properties reveal the coupling mechanism and a significant tuning of the mechanical resonator frequency.

    • Lukas Tenbrake
    • , Alexander Faßbender
    •  & Hannes Pfeifer

  • Article
    | Open Access

    In this work, the authors use a surface plasmonic mechanism to efficiently confine TeraHertz photons inside ultrasmall cavities. These plasmonic-based TeraHertz cavities are shown to operate until the ultimate limit that is allowed fundamentally and at which plasmons start to behave in a nonlocal fashion.

    • Ian Aupiais
    • , Romain Grasset
    •  & Yannis Laplace

  • Article
    | Open Access

    Laser machining can modify and reshape materials on the scale comparable to light’s wavelength. Here, authors use tailored microstructures to push the limit of laser machining to a scale that is almost 100 times smaller than a wavelength of light.

    • Maxim R. Shcherbakov
    • , Giovanni Sartorello
    •  & Gennady Shvets

  • Article
    | Open Access

    Phosphor efficiency can be improved via materials development or structural engineering, the latter only begun lately. Here the authors propose and investigate simple vertical resonant cavity as a platform for nanostructurally engineered phosphor.

    • Tae-Yun Lee
    • , Yeonsang Park
    •  & Heonsu Jeon

  • Article
    | Open Access

    Photonic, electronic and lattice resonances in patterned semiconductor microcavities are tailored to demonstrate coherent bidirectional microwave-to-optical conversion via phonon-exciton-photon quasi-particles in the strong-coupling regime.

    • Alexander Sergeevich Kuznetsov
    • , Klaus Biermann
    •  & Paulo Ventura Santos

  • 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

    Authors report quantum decoherence of dissipative Kerr solitons in normal-dispersion microresonators, also known as dark pulses. They show the quantum decoherence of dark pulses and their potential advantages over bright solitons in an AlGaAs-on-insulator system.

    • Chenghao Lao
    • , Xing Jin
    •  & Qi-Fan Yang

  • Article
    | Open Access

    Topological lasers often suffer from low directionality, and/or complex design requirements hindering operation at small wavelengths. Here, by using a few monolayers of perovskite quantum dots, the authors demonstrate a lithography-free, vertical-emitting, single-mode laser emitting in the green.

    • Jingyi Tian
    • , Qi Ying Tan
    •  & Cesare Soci

  • Article
    | Open Access

    Twisted light in the form of orbital angular momentum (OAM) can provide an additional spatial dimension for information transmission. Here, the authors demonstrate a prescription for OAM generation using photonic crystal ring resonators, in which high cavity quality factors (up to 106) are retained.

    • Xiyuan Lu
    • , Mingkang Wang
    •  & Kartik Srinivasan

  • Article
    | Open Access

    Resonators are key components in optics. In this work, the authors introduce a class of optical resonators with distinctly different properties from conventional resonators, allowing fundamental design trade-offs to be circumvented.

    • Vincent Ginis
    • , Ileana-Cristina Benea-Chelmus
    •  & Federico Capasso

  • Article
    | Open Access

    Developing longwave infrared technology hide intrinsic challenges but at the same time is important to develop sensing and imaging for detection, ranging, and monitoring systems. Here the authors demonstrate the fabrication of high-quality microresonators in the LWIR with the simple use of native germanium.

    • Dingding Ren
    • , Chao Dong
    •  & David Burghoff

  • 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

    Here, the authors show brightening of dark excitons by strong coupling between cavity photons and high energy, spin-allowed, bright excitons in monolayer WSe2. In this regime, the commonly observed photoluminescence quenching stemming from the fast relaxation to the dark ground state is prevented.

    • Hangyong Shan
    • , Ivan Iorsh
    •  & Christian Schneider

  • Article
    | Open Access

    Dual-wavelength lasers are gaining importance for photonic applications. In this work the authors demonstrate that by incorporating a lanthanidedoped material into the size-mismatched coupled microcavities, it is possible to achieve laser switch with high uniformity, long-term stability, and an extremely wide spectral range up to 300 nm

    • Limin Jin
    • , Xian Chen
    •  & Qinghai Song

  • 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

    Constructing ultraviolet lasing is of great significance for basic research and medical use. Here the authors present a strategy for generating ultraviolet lasing through a tandem upconversion process with ultralarge anti-Stokes shift (1260 nm).

    • Tianying Sun
    • , Bing Chen
    •  & Feng Wang

  • Article
    | Open Access

    The authors demonstrate an all-optical method to control the polarization of light. Harnessing the Kerr nonlinearity in an optical resonator, this enables precise polarization control in photonic circuits.

    • N. Moroney
    • , L. Del Bino
    •  & P. Del’Haye

  • Article
    | Open Access

    Integrated optical frequency measurements, benefit from broadband on-chip frequency combs. Here the authors present a low-noise microcomb whose span extends from telecom to near-visible wavelengths. Here the authors present a dissipative Kerr soliton formation approximated by introducing the concept of synthetic dispersion.

    • Gregory Moille
    • , Edgar F. Perez
    •  & Kartik Srinivasan

  • Article
    | Open Access

    Strong coupling between light and matter can be engineered to influence their properties and behaviour. Here, the authors demonstrate the evolution from weak to ultrastrong coupling of microcavity modes and optical phonons with hexagonal boron nitride layers in a Fabry-Perot resonator.

    • María Barra-Burillo
    • , Unai Muniain
    •  & Rainer Hillenbrand

  • Article
    | Open Access

    Higher order synchronization in optomechanical devices is relatively unexplored. Here the authors use nonlinear parametric effects to entrain an optomechanical oscillator with a drive signal several octaves away from the oscillation frequency, and demonstrate RF frequency division.

    • Caique C. Rodrigues
    • , Cauê M. Kersul
    •  & Gustavo S. Wiederhecker

  • Article
    | Open Access

    Microcavity exciton-polaritons in atomically thin semiconductors are a promising platform for valley manipulation. Here, the authors show valley-selective control of polariton energies in monolayer WS2 using the optical Stark effect, thereby extending coherent valley manipulation to a hybrid light-matter regime

    • Trevor LaMountain
    • , Jovan Nelson
    •  & Nathaniel P. Stern

  • Article
    | Open Access

    The use of cavity optomechanics for optical information processing is hindered by mechanical dissipation and the difficulties in stored signal control. Here, the authors improve performances on both fronts using time-varying parametric feedback through an additional optical field in a multi-mode cavity.

    • David P. Lake
    • , Matthew Mitchell
    •  & Paul E. Barclay

  • Article
    | Open Access

    High-Q resonators are used to enhance nonlinear phenomena in photonics, but developing a fabrication process to shape a new material into a resonator is challenging and costly. Here, the authors present a method using vapour deposition on pre-patterned substrates to fabricate resonators with any new material.

    • Dae-Gon Kim
    • , Sangyoon Han
    •  & Hansuek Lee

  • Article
    | Open Access

    Heat flux is well understood on macroscopic scales, however when the system size is reduced, novel phenomena are induced by fluctuations. Here, the authors demonstrate phonon heat transport between two nanomechanical resonators coupled by cavity enhanced interactions exhibiting an oscillating heat flux.

    • Cheng Yang
    • , Xinrui Wei
    •  & Haibin Wu

  • Article
    | Open Access

    For advanced microcomb applications, the exact detection of the high repetition rate becomes difficult due to the limited bandwidth of the photodiodes. Here, the authors present a Vernier dual-comb method to sample the main soliton comb and divide the repetition rate by a generating low frequency beat notes.

    • Beichen Wang
    • , Zijiao Yang
    •  & Xu Yi

  • Article
    | Open Access

    Here, the authors report the creation of trion-polaritons in monolayer MoSe2 in an open microcavity exhibiting strong nonlinear interactions, one order of magnitude bigger than those observed for exciton polaritons in GaAs.

    • R. P. A. Emmanuele
    • , M. Sich
    •  & D. N. Krizhanovskii

  • Article
    | Open Access

    Here, the authors demonstrate acousto-optic modulation of silicon nitride microring resonators using high-overtone bulk acoustic wave resonances, allowing modulation in the GHz range via acoustic waves. As an application, an optical isolator is demonstrated with 17 dB non-reciprocity.

    • Hao Tian
    • , Junqiu Liu
    •  & Sunil A. Bhave

  • Comment
    | Open Access

    Exotic degeneracies in open quantum systems, so-called exceptional points, show rich physics and promise new applications, such as sensors with greatly enhanced response. Recent research on laser gyroscopes has uncovered limits of such sensors due to excess quantum noise.

    • Jan Wiersig

  • 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
    •  & Tobias J. Kippenberg

  • 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
    •  & Yun-Feng Xiao

  • 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
    •  & Paul E. Barclay

  • Article
    | Open Access

    Despite larger nonlinear coefficients, waveguide losses have prevented using semiconductors instead of dielectric materials for on-chip frequency-comb sources. By significantly reducing waveguide loss, ultra-low-threshold Kerr comb generation is demonstrated in a high-Q AlGaAs-on-insulator microresonator system.

    • Lin Chang
    • , Weiqiang Xie
    •  & John E. Bowers

  • Article
    | Open Access

    The directional lasing emission in whispering gallery microcavities typically resorts to breaking the structure symmetry. Here the authors demonstrate a reconfigurable symmetry-broken microlaser in a symmetric ultrahigh-Q whispering gallery microcavity, in which a chirality of lasing fields is empowered spontaneously by nonlinear effects.

    • Qi-Tao Cao
    • , Ruishan Liu
    •  & Yun-Feng Xiao

  • Article
    | Open Access

    FPGAs have long been of interest as reconfigurable circuits, but their electronic nature provides eventual limitations. Here the authors demonstrate a photonic digital signal processor that is field programmable using arrays of microdisk resonators.

    • Weifeng Zhang
    •  & Jianping Yao

  • Article
    | Open Access

    In order to satisfy a wide range of modern microwave applications, improved methods are needed to produce low-noise microwave signals. Here the authors demonstrate ultra-low noise microwave synthesis via optical frequency division using a transfer oscillator method applied to a microresonator-based comb on the path to future self-referenced integrated sources.

    • Erwan Lucas
    • , Pierre Brochard
    •  & Tobias J. Kippenberg

  • Article
    | Open Access

    Here, the authors demonstrate strain-induced, strong coupling between two adjacent nanomechanical pillar resonators for the investigation of collective dynamical phenomena. Both mode hybridization and the formation of an avoided level crossing in the response of the nanopillar pair are experimentally observed.

    • J. Doster
    • , S. Hoenl
    •  & E. M. Weig

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