Applied optics articles within Nature Communications

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  • Article
    | Open Access

    The realization of intrinsically stretchable organic photovoltaics with excellent mechanical robustness remains challenging. Here, the authors redistribute the strain in the active layer to PEDOT:PSS electrodes with simultaneously enhanced stretchability and interfacial adhesion in the device.

    • Jiachen Wang
    • , Yuto Ochiai
    •  & Takao Someya
  • Article
    | Open Access

    On-chip optical sensing and metrology systems are rapidly progressing, but CMOS-compatible silicon light sources remain a challenge. This work demonstrates a broadband, foundry integrated silicon waveguide emitter and the theory that describes it.

    • Marcel W. Pruessner
    • , Nathan F. Tyndall
    •  & Todd H. Stievater
  • Article
    | Open Access

    The authors demonstrate ultrabroadband, polarisation-independent directional control of thermal radiation using a pixelated micro-emitter, and produce large emissivity contrast at different directions, with potential applications to radiative cooling, infrared spectroscopy and thermophotovoltaics.

    • Ziwei Fan
    • , Taeseung Hwang
    •  & Zi Jing Wong
  • Article
    | Open Access

    Efficient radiation is essential to reach thermodynamic limit of photovoltaic efficiency. Here, authors design thick quantum barriers to suppress interfacial quenching and boost photon recycling in perovskite cells, achieving high radiation and photovoltaic efficiencies and long device stability.

    • Kyung Mun Yeom
    • , Changsoon Cho
    •  & Jun Hong Noh
  • Article
    | Open Access

    Lee et al. developed ultrathin metallic (metal filling ratios of > 70 %) metamaterials that exhibit perfect transmission at a specific radar frequency. These characteristics enable microwave transparent, low-sheet-resistance radar heaters for safe autonomous driving in extreme weather.

    • Eun-Joo Lee
    • , Jun-Young Kim
    •  & Sun-Kyung Kim
  • Article
    | Open Access

    Here the authors demonstrate a laser system that can directly output soliton microcombs, with high power efficiency and reconfigurability, paving the way for communication, computing, and metrology based on integrated photonics.

    • Jingwei Ling
    • , Zhengdong Gao
    •  & Qiang Lin
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    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
  • Article
    | Open Access

    The researchers showcase a flexible meta-sensor array based on classical Mie resonance, enabling precise detection of in-plane strain direction and magnitude using dynamically transmitted terahertz (THz) signals. The sensor array holds immense promise for the real-life applications as it possesses high sensor density and has a very large size up to (110 ×130 mm2).

    • Xueguang Lu
    • , Feilong Zhang
    •  & Qiang Cheng
  • Article
    | Open Access

    The researchers showcase a photonic-electronic FMCW LiDAR source composed of a micro-electronic based high-voltage arbitrary waveform generator, a photonic circuit-based tunable Vernier laser with piezoelectric actuators, and an erbium-doped waveguide amplifier.

    • Anton Lukashchuk
    • , Halil Kerim Yildirim
    •  & Tobias J. Kippenberg
  • Article
    | Open Access

    Authors present an adaptive underwater optical communication (UWOC) technology based on multi-wavelength lasers and a full-color metasurface for converting visible-band Gaussian to circular autofocusing Airy beams. The potential of Airy beams to mitigate optical power degradation is demonstrated, enabling stable data rate transmission via 4 K video transmission for these systems.

    • Junhui Hu
    • , Zeyuan Guo
    •  & Chao Shen
  • Article
    | Open Access

    Signal transmission without the interference from ambient light is prerequisite for optical communications. Min et al. design an asymmetric 2D-3D-2D perovskite photodetector with frequency-selective photoresponse for real-time high fidelity optical communications under strong light interference.

    • Liangliang Min
    • , Haoxuan Sun
    •  & Liang Li
  • Article
    | Open Access

    Parallel information transmission components and hardware strategies are still lacking in neural networks. Here, the authors propose a strategy to use light emitting memristors with negative ultraviolet photoconductivity and intrinsic parallelism to construct direct information cross-layer modules.

    • Zhenjia Chen
    • , Zhenyuan Lin
    •  & Huipeng Chen
  • Article
    | Open Access

    Using gas cells for spectroscopic studies opens possibility for miniaturized platforms that can be integrated with other optical components. Here the authors demonstrate molecular rovibrational spectroscopy by confining molecules in a cell of subwavelength thickness.

    • Guadalupe Garcia Arellano
    • , Joao Carlos de Aquino Carvalho
    •  & Athanasios Laliotis
  • Article
    | Open Access

    Mid-infrared hyperspectral imaging is valuable for sample characterisation but suffers limited scanning rates. The authors develop such an imaging system based on parametric upconversion of supercontinuum illumination in the Fourier plane, enabling a 100-Hz acquisition rate of spectral datacubes.

    • Jianan Fang
    • , Kun Huang
    •  & Heping Zeng
  • Article
    | Open Access

    The miniaturization of spectrometers to a submillimeter-scale footprint opens opportunities for applications in hyperspectral imaging and lab-on-a-chip systems. Here, the authors report a high-performance single-pixel photodetector spectrometer based on the III-V semiconductor p-graded-n junction, featuring a voltage-tunable optical response.

    • Jingyi Wang
    • , Beibei Pan
    •  & Baile Chen
  • Article
    | Open Access

    Exploring the miniaturization of imaging systems, researchers use inverse-design for broadband meta-optics in the LWIR spectrum. Here, authors achieve a six-fold Strehl ratio improvement in image quality over conventional metalenses using a novel design and computational techniques.

    • Luocheng Huang
    • , Zheyi Han
    •  & Arka Majumdar
  • Article
    | Open Access

    An efficient and physically accurate platform is required to rapidly design high-performance integrated photonic devices. Here, the authors present a scalable framework for creating on-chip optical systems with complex and arbitrary functionality.

    • Ali Najjar Amiri
    • , Aycan Deniz Vit
    •  & Emir Salih Magden
  • Article
    | Open Access

    The integration of 2D materials with metasurfaces can enhance their quantum efficiency, but the approach is usually limited to a narrow spectral band. Here, the authors report the realization of gate-tunable graphene photodetectors combined with all-dielectric periodic slits, leading to enhanced photoresponse in the short-to-long-wave infrared.

    • Hao Jiang
    • , Jintao Fu
    •  & Cheng-Wei Qiu
  • Article
    | Open Access

    The authors investigate light beam propagation in multimode optical fibers, considering linear random mode coupling and Kerr nonlinearity. They utilize a 3D mode decomposition technique, enabling them to accurately characterize modal distributions over extended lengths of graded-index fiber.

    • Mario Zitelli
    • , Fabio Mangini
    •  & Stefan Wabnitz
  • Article
    | Open Access

    New detector materials are crucial for radiation beam monitoring in dosimeters and X-ray imaging. The authors report a solution-grown biocompatible organic single crystalline semiconductor for real-time spectral detection of charged particles with single-particle sensitivity, X-ray detection and imaging.

    • Dou Zhao
    • , Ruiling Gao
    •  & Yadong Xu
  • Article
    | Open Access

    The Authors present a universal framework that utilizes photonic integrated circuits (PIC) to enhance the efficiency of reinforcement learning (RL). Leveraging the advantages of the hybrid architecture PIC (HyArch PIC), the PIC-RL experiment demonstrates a remarkable 56% improvement in efficiency for synthesizing perovskite materials.

    • Xuan-Kun Li
    • , Jian-Xu Ma
    •  & Xian-Min Jin
  • Article
    | Open Access

    Waterproof flexible organic solar cells without compromising mechanical flexibility and conformability remains challenging. Here, the authors demonstrate in-situ growth of hole-transporting layer to strengthen interfacial and thermodynamic adhesion for better waterproofness in 3 μm-thick devices.

    • Sixing Xiong
    • , Kenjiro Fukuda
    •  & Takao Someya
  • 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

    Here the authors unveil an approach rooted in non-Hermitian physics to precisely control light amplification in an integrated photonic platform, paving the way for innovative on-chip functionalities, like coherent control of light amplification and routing.

    • Weijie Liu
    • , Quancheng Liu
    •  & Feng Chen