Liquid crystal between two distributed Bragg reflectors enables multispectral small-pitch spatial light modulator Junghyun ParkKanghee WonYoung Kim News & Views Open Access 07 Jul 2022 Intelligent metasurfaces can recognize objects An on-chip optical diffractive neural network is built based on metasurfaces, which can recognize objects. Mengxin RenJingjun Xu News & Views Open Access 07 Jul 2022 Full experimental determination of tunneling time with attosecond-scale streaking method A novel attosecond-scale streaking method was proposed and demonstrated to determine the tunneling time of an electron with a precision of a few attoseconds. Miao YuKun LiuPeixiang Lu Article Open Access 07 Jul 2022 Low-loss microwave photonics links using hollow core fibres We demonstrate analogue photonics links using hollow-core fibres, showing they significantly surpass the performance of standard fibre analogue links in every metrics of link gain, noise figure, and dynamic range. Xi ZhangZitong FengRadan Slavík Article Open Access 07 Jul 2022 Intelligent wireless walls for contactless in-home monitoring This work proposes a concept of intelligent wireless walls (IWW) to ensure high-precision activity monitoring in complex environments, namely corridor junction scenario and multi-floor scenario Muhammad UsmanJames RainsQammer H. Abbasi Article Open Access 07 Jul 2022 On-chip beam rotators, adiabatic mode converters, and waveplates through low-loss waveguides with variable cross-sections A new technology enables fast production of waveguide (SPIM-WG) based high performance optical devices with very low loss, precisely organized refractive index, arbitrarily variable cross-sections and high coupling efficiency. Bangshan SunFyodor MorozkoMartin J. Booth Article Open Access 07 Jul 2022 Functionalizing Van der Waals materials by shaping them Deep Jariwala News & Views Open Access 06 Jul 2022 Exploiting optical degrees of freedom for information multiplexing in diffractive neural networks Chao ZuoQian Chen News & Views Open Access 06 Jul 2022 Dispersion coding of ENZ media via multiple photonic dopants The multiple photonic dopants contained in an epsilon-near-zero medium can serve as non-interacting resonators, and offer an opportunity for the independent control of electromagnetic waves at various frequencies. Ziheng ZhouHao LiYue Li Article Open Access 06 Jul 2022 Photoinduced large polaron transport and dynamics in organic–inorganic hybrid lead halide perovskite with terahertz probes Ultrafast terahertz conductivity spectroscopy reveals the formation of large polarons in CH3NH3PbI3, which protects the charge carriers from scattering with polycrystalline grain boundaries or defects and explains the long lifetime. Zuanming JinYan PengSonglin Zhuang Article Open Access 06 Jul 2022 Separating arbitrary free-space beams with an integrated photonic processor We show that a programmable photonic integrated processor can separate, directly in the optical domain, spatially-overlapped free-space optical beams with unknown shapes, sharing the same wavelength and polarization. Maziyar MilanizadehSeyedMohammad SeyedinNavadehFrancesco Morichetti Article Open Access 05 Jul 2022 Optical demonstration of quantum fault-tolerant threshold We observe the error rate threshold of quantum fault-tolerant computation by using optical spatial modes of two entangled photons to encode logical qubits. Kai SunZe-Yan HaoGuang-Can Guo Article Open Access 05 Jul 2022 Towards higher-dimensional structured light It is the first perspective or review that considers the dimensionality that may be reached with structured light, as well as the opportunities and challenges in pursuing this. Chao HeYijie ShenAndrew Forbes Perspective Open Access 05 Jul 2022 Quantitative phase imaging through an ultra-thin lensless fiber endoscope Graphical abstract for Quantitative phase imaging through an ultra-thin lensless fiber endoscope. Jiawei SunJiachen WuJuergen W. Czarske Article Open Access 05 Jul 2022 1-Pbps orbital angular momentum fibre-optic transmission A 1-Pbps orbital-angular-momentum fibre-optic transmission system that combines space-division multiplexing and wavelength-division multiplexing in a 34 km 7-core ring-core fibre is demonstrated utilizing low-complexity 4 × 4 MIMO equalization. Junyi LiuJingxing ZhangSiyuan Yu Article Open Access 05 Jul 2022