All Year All A multi-mode super-fano mechanism for enhanced third harmonic generation in silicon metasurfaces We theoretically and experimentally show a 900-fold boosting of optical THG emission in silicon metasurfaces using a novel type of nonlinear multi-mode Fano mechanism. David HähnelChristian GollaCedrik Meier Article Open Access 21 Apr 2023 Far-infrared transparent conductors The first family of far-infrared transparent conductive materials was developed by increasing the optical dielectric constant. Chaoquan HuZijian ZhouJiaqi Zhu Article Open Access 21 Apr 2023 Near-field terahertz nonlinear optics with blue light Angela PizzutoPingchuan MaDaniel M. Mittleman Article Open Access 19 Apr 2023 Massively parallel chaos for LiDAR Shaohua Yu Research Highlight Open Access 18 Apr 2023 Deep-learning-based gas identification by time-variant illumination of a single micro-LED-embedded gas sensor In this study, a novel sensing strategy to identify gas species selectively and to estimate the concentrations of multiple gases was proposed. Highly sensitive gold NPs coated GLAD In2O3 was used as a gas-sensing material, and time-variant pseudorandom illumination of a single monolithic micro-LED (μLED) photoactivated (μLP) gas sensor was applied. Transient sensor signals, owing to the rapid changes in the light intensity of μLED and different reaction kinetics of various gas species, facilitate the identification of gas species. A deep convolutional neural network (CNN) was used to effectively analyze the complex frequency spectrogram of the transient sensor signals. As such, the identification of four mono-gas environments and binary gas mixtures (mixed ethanol and methanol) were successfully demonstrated with high accuracy. The total power consumption of the μLP was only 0.53 mW, one-hundredth of the conventional electronic nose (e-nose) system. Therefore, the proposed method may significantly improve the efficiency of e-nose technology in terms of cost, space, and power consumption. Incheol ChoKichul LeeInkyu Park Article Open Access 18 Apr 2023 Author Correction: Miniscope3D: optimized single-shot miniature 3D fluorescence microscopy Kyrollos YannyNick AntipaLaura Waller Author Correction Open Access 17 Apr 2023 On-chip generation of Bessel–Gaussian beam via concentrically distributed grating arrays for long-range sensing Zihao ZhiQuanxin NaJunfeng Song Article Open Access 14 Apr 2023 Light People: Professor Cheng-Wei Qiu Prof. Cheng-Wei Qiu spoke about the structured surface of multi-dimensional fusion and beam manipulation. Tingting Sun Light People Open Access 10 Apr 2023