All Year All Nonlocal Huygens’ meta-lens for high-quality-factor spin-multiplexing imaging We propose a nonlocal Huygens’ meta-lens with a high quality factor, enabling multiplexing functionality for bright-field and edge-enhanced imaging by controlling output spin states. Jin YaoYubin FanDin Ping Tsai ArticleOpen Access30 Jan 2025 Advanced technologies in InGaN micro-LED fabrication to mitigate the sidewall effect This work reviews the origins and mitigation strategies for sidewall effects in InGaN-based micro-LEDs. Zhiyuan LiuHaicheng CaoXiaohang Li Review ArticleOpen Access26 Jan 2025 Metasurface higher-order poincaré sphere polarization detection clock Hui YangKai OuHuigao Duan ArticleOpen Access26 Jan 2025 Capillary condensation-driven growth of perovskite nanowire arrays for multi-functional photodetector Gangjian HuJiajun GuoLiang Shen ArticleOpen Access24 Jan 2025 Transparent OLED displays for selective bidirectional viewing using ZnO/Yb:Ag cathode with highly smooth and low-barrier surface A novel transparent OLED pixel geometry featuring a ZnO/Yb:Ag cathode enables selective bidirectional viewing, presenting different types of information on each side while maintaining transparency and simplifying pixel complexity. Eun-young ChoiSung-Cheon KangJang-Kun Song ArticleOpen Access24 Jan 2025 Optical semantic communication through multimode fiber: from symbol transmission to sentiment analysis A novel optical semantic transmission scheme based on MMF is proposed, achieving 9.12 bits/s/Hz spectral efficiency and enabling sentiment analysis. Zheng GaoTing JiangMing Tang ArticleOpen Access23 Jan 2025 Using light to image millimeter wave based on stacked meta-MEMS chip Han WangZhigang WangWeiwei Liu ArticleOpen Access22 Jan 2025 Comment on “Early cancer detection by serum biomolecular fingerprinting spectroscopy with machine learning” Ivan A. BratchenkoLyudmila A. Bratchenko CorrespondenceOpen Access20 Jan 2025 Cascaded metalenses boost applications in near-eye display Jiacheng SunTao Li News & ViewsOpen Access20 Jan 2025 Reply to: comment on “Early cancer detection by serum biomolecular fingerprinting spectroscopy with machine learning” Shilian DongDong HeXiangheng Xiao CorrespondenceOpen Access20 Jan 2025 Enhanced multiscale human brain imaging by semi-supervised digital staining and serial sectioning optical coherence tomography Enhanced 3D brain imaging modality by integrating serial-sectioning OCT with semi-supervised digital staining. Shiyi ChengShuaibin ChangLei Tian ArticleOpen Access20 Jan 2025 Bayesian optimization with Gaussian-process-based active machine learning for improvement of geometric accuracy in projection multi-photon 3D printing An active machine learning framework is developed to optimize process parameters in additive manufacturing. Demonstrated for projection multi-photon lithography, it achieves sub-100 nm accuracy in 3D-printed structures with minimal experimentation. Jason E. JohnsonIshat Raihan JamilXianfan Xu ArticleOpen Access20 Jan 2025 Neuron-inspired CsPbBr3/PDMS nanospheres for multi-dimensional sensing and interactive displays Drawing inspiration from neural architectures, the customized cross-linking density in shell materials of perovskite/polymer nanosphere enables advanced multi-dimensional sensing and interaction. Junhu CaiXiang ZhangEnguo Chen ArticleOpen Access17 Jan 2025 Realizing low voltage-driven bright and stable quantum dot light-emitting diodes through energy landscape flattening Giant full-alloy QDs flatten the energy disorder between the QD layer and hole transport layer, realizing low voltage-driven bright QLEDs with a T95@1000 cd m-2 lifetime surpassing 72,000 h. Yiting LiuYingying SunHuaibin Shen ArticleOpen Access16 Jan 2025 Optical Fresnel zone plate flat lenses made entirely of colored photoresist through an i-line stepper The specially developed color resist enables low-cost, mass-production of visible light Fresnel zone plates using only exposure and development through an i-line stepper used in the semiconductor industry. Ryohei YamadaHiroyuki KishidaKuniaki Konishi ArticleOpen Access16 Jan 2025 Polariton lattices as binarized neuromorphic networks Evgeny SedovAlexey Kavokin ArticleOpen Access16 Jan 2025 Unravelling the nonlinear generation of designer vortices with dielectric metasurfaces Laure CoudratGuillaume BoulliardGiuseppe Leo ArticleOpen Access16 Jan 2025 Frequency-bin-encoded entanglement-based quantum key distribution in a reconfigurable frequency-multiplexed network The first-time demonstration of frequency-bin-encoded entanglement-based quantum key distribution is revealed using a scalable and dynamic quantum network architecture that is resource-efficient and benefits from reconfigurability of telecommunication components. Anahita Khodadad KashiMichael Kues ArticleOpen Access16 Jan 2025 Optoelectronic array of photodiodes integrated with RRAMs for energy-efficient in-sensor computing Wen PanLai WangYi Luo ArticleOpen Access15 Jan 2025 Nonlinear memristive computational spectrometer Xin LiJie WangGuanhai Li ArticleOpen Access14 Jan 2025