Publisher Correction Open Access 20 Sept 2024 Dielectric metamaterials with effective self-duality and full-polarization omnidirectional brewster effect Hao LuoJie LuoYun Lai Article Open Access 20 Sept 2024 Measuring, processing, and generating partially coherent light with self-configuring optics The PCLA analyzes partially coherent light by optimizing output power through a series of self-configuring Mach-Zehnder interferometers, effectively decomposing the input light field into its incoherent components. Charles Roques-CarmesShanhui FanDavid A. B. Miller Article Open Access 20 Sept 2024 Dynamic gain driven mode-locking in GHz fiber laser This work focuses on the study of dynamic gain driven mode-locking in GHz fiber lasers and finally realizes stable mode-locking with a high fundamental repetition rate of 21 GHz. Xuewen ChenWei LinZhongmin Yang Article Open Access 20 Sept 2024 Observation of nonlinear fractal higher order topological insulator Hua ZhongVictor O. KompanetsVictor N. Zadkov Article Open Access 20 Sept 2024 Optical neural networks: progress and challenges Tingzhao FuJianfa ZhangHongwei Chen Review Article Open Access 20 Sept 2024 Rational strategy for power doubling of monolithic multijunction III-V photovoltaics by accommodating attachable scattering waveguides The maximum output power of transfer-printed multijunction InGaP/GaAs solar cells is enhanced by approximately 93% through cost-effective integration with a coplanar waveguide that includes BaSO4 Mie scattering elements. Shin Hyung LeeHyo Jin KimSung-Min Lee Article Open Access 20 Sept 2024 Parity-Time symmetry helps breaking a new limit Parity-Time symmetric micro-resonators utilizing nonlinear four-wave mixing, now surpass the bandwidth-efficiency limit for optical signal processing, achieving a remarkable 100-fold efficiency boost. Wenjie WanXiaoshun Jiang News & Views Open Access 19 Sept 2024 Neural stimulation and modulation with sub-cellular precision by optomechanical bio-dart We report a non-genetic optical neural stimulation and modulation strategy with sub-cellular precision based on optomechanical bio-dart, which also enables in vivo neural stimulation. Guoshuai ZhuJianyun XiongHongbao Xin Article Open Access 19 Sept 2024 Phase-change VO2-based thermochromic smart windows This review encapsulates the attributes of phase-change-VO2-based smart windows, highlighting their adaptive radiative cooling mechanisms, large modulation of both solar energy and thermal radiation, and methods for controlling phase-transition temperatures. Cancheng JiangLanyue HeDangyuan Lei Review Article Open Access 18 Sept 2024 Optical fibre based artificial compound eyes for direct static imaging and ultrafast motion detection This artificial compound eye with microlensed optical fibres faithfully mimics the anatomical structure of natural compound eyes and thus can achieve 180o superior static and dynamic perception. Heng JiangChi Chung TsoiXuming Zhang Article Open Access 18 Sept 2024 Lanthanide ion-doped upconversion nanoparticles for low-energy super-resolution applications Simone LamonHaoyi YuMin Gu Review Article Open Access 14 Sept 2024 Towards next-generation diagnostic pathology: AI-empowered label-free multiphoton microscopy AI-empowered multiphoton microscopy enhances diagnostic accuracy and efficiency for various human diseases, evolving towards next-generation diagnostic pathology with an endogenous, multi-dimensional, and intelligent approach. Shu WangJunlin PanJianxin Chen Review Article Open Access 14 Sept 2024 Deep-trap ultraviolet persistent phosphor for advanced optical storage application in bright environments We report a deep-trap ultraviolet persistent phosphor with thermoluminescence glow peaks beyond 500 K that exhibits intense and long-lasting ultraviolet luminescence under indoor lighting conditions but emits negligible afterglow in darkness. Xulong LvYanjie LiangXiao-Jun Wang Article Open Access 14 Sept 2024 Spatio-temporal breather dynamics in microcomb soliton crystals We explore and observe the spatio-temporal breather dynamics of optical soliton frequency comb crystals, examining spatial breathers, chaos transitions, and dynamical switching – in nonlinear measurements and theory. Futai HuAbhinav Kumar VinodChee Wei Wong Article Open Access 12 Sept 2024 Deep learning as a highly efficient tool for digital signal processing design Andrey Pryamikov News & Views Open Access 11 Sept 2024 A simple and rapid simultaneous measurement strategy for optical rotatory dispersion and circular dichroism A simple cavity-based technology capable of simultaneously measuring optical rotary dispersion and circular dichroism within milliseconds offers ultra-high sensitivity and unprecedented spectral resolution. Junjie Du News & Views Open Access 11 Sept 2024 Coulomb focusing in attosecond angular streaking This study demonstrates the Coulomb focusing in nonadiabatic tunneling ionization inducing the convergence of electrons emitted at different initial ionization times to the same emission angle, thereby breaking the one‐to-one correspondence—one of the fundamental assumption in attosecond angular streaking. Xiaokai LiXiwang LiuDajun Ding Article Open Access 11 Sept 2024