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| 1 | Less than 6 GHz resolution THz spectroscopy of water vapor显示文摘在许多的技术象石油工业一样回答的兆兆赫(THz ) 的申请要求高分辨率和多功能认识到不同材料的精确察觉。在这学习水里,在空气的蒸汽与 shortand 被扫描有不同扫描范围的长路径的 THz 分光计。在在长路径的系统的 THz 典型的线的半最大值的完整的宽度到达了不到 7 GHz 和那在突然完成了 5.5 GHz,显示水蒸汽的 THz 光谱学能被用来校准 THz 设备。有正确扫描范围的 THz 系统能是为有由于高分辨率的很类似的结构的固体,液体和气体的材料的鉴定的一种有希望的选择。研究证明多功能的 THz 测试能在许多领域里通过分辨率和采样空格的平衡被认识到,例如油气体工业。 | ZHAN HongLei SUN ShiNing ZHAO Kun LENG WenXiu BAO RiMa XIAO LiZhi ZHANG ZhenWei | 2015 | Science China(Technological Sciences)2015，58，12： | 10 |
| 2 | A bioactive injectable self-healing anti-inflammatory hydrogel with ultralong extracellular vesicles release synergistically enhances motor functional recovery of spinal cord injury显示文摘The repair and motor functional recovery after spinal cord injury(SCI)remains a worldwide challenge.The inflammatory microenvironment is one of main obstacles on inhibiting the recovery of SCI.Using mesenchymal stem cells(MSCs)derived extracellular vesicles to replace MSCs transplantation and mimic cell paracrine secretions provides a potential strategy for microenvironment regulation.However,the effective preservation and controlled release of extracellular vesicles in the injured spinal cord tissue are still not satisfied.Herein,we fabricated an injectable adhesive anti-inflammatory F127-polycitrate-polyethyleneimine hydrogel(FE)with sustainable and long term extracellular vesicle release(FE@EVs)for improving motor functional recovery after SCI.The orthotopic injection of FE@EVs hydrogel could encapsulate extracellular vesicles on the injured spinal cord,thereby synergistically induce efficient integrated regulation through suppressing fibrotic scar formation,reducing inflammatory reaction,promoting remyelination and axonal regeneration.This study showed that combining extracellular vesicles into bioactive multifunctional hydrogel should have great potential in achieving satisfactory locomotor recovery of central nervous system diseases. | Chenggui Wang Min Wang Kaishun Xia Jingkai Wang Feng Cheng Kesi Shi Liwei Ying Chao Yu Haibin Xu Shining Xiao Chengzhen Liang Fangcai Li Bo Lei Qixin Chen | 2021 | Bioactive Materials2021，6，8： | 9 |
| 3 | Quasi-phase-matching-division multiplexing holography in a three-dimensional nonlinear photonic crystal显示文摘Nonlinear holography has recently emerged as a novel tool to reconstruct the encoded information at a new wavelength,which has important applications in optical display and optical encryption.However,this scheme still struggles with low conversion efficiency and ineffective multiplexing.In this work,we demonstrate a quasi-phasematching(QPM)-division multiplexing holography in a three-dimensional(3D)nonlinear photonic crystal(NPC).3D NPC works as a nonlinear hologram,in which multiple images are distributed into different Ewald spheres in reciprocal space.The reciprocal vectors locating in a given Ewald sphere are capable of fulfilling the complete QPM conditions for the high-efficiency reconstruction of the target image at the second-harmonic(SH)wave.One can easily switch the reconstructed SH images by changing the QPM condition.The multiplexing capacity is scalable with the period number of 3D NPC.Our work provides a promising strategy to achieve highly efficient nonlinear multiplexing holography for high-security and high-density storage of optical information. | Pengcheng Chen Chaowei Wang Dunzhao Wei Yanlei Hu Xiaoyi Xu Jiawen Li Dong Wu Jianan Ma Shengyun Ji Leran Zhang Liqun Xu Tianxin Wang Chuan Xu Jiaru Chu Shining Zhu Min Xiao Yong Zhang | 2021 | Light(Science & Applications)2021，10，8： | 5 |
| 4 | Periodically poled LiNbO3 crystals from 1D and 2D to 3D显示文摘A periodically-poled LiNbO3(PPLN) crystal features space-dependent second-order nonlinear coefficients, which is one of the most important materials to effectively control nonlinear optical interactions through quasi-phase matching(QPM). By using electric-field poling method, 1D and 2D PPLN crystals have been successfully fabricated for laser frequency conversion, quantum light sources, nonlinear beam shaping and nonlinear optical imaging. Recently, femtosecond laser engineering technique is utilized to prepare 3D domain structures inside LiNbO3 crystal, which provides a promising platform to control nonlinear interacting waves in 3D configuration. After 40 years of developments, PPLN crystals still have exciting prospects in fundamental researches and practical applications for integrated photonic chip, quantum information processing,and so on. | WANG TianXin CHEN PengCheng XU Chuan ZHANG Yong WEI DunZhao HU XiaoPeng ZHAO Gang XIAO Min ZHU ShiNing | 2020 | Science China(Technological Sciences)2020，63，7： | 3 |
| 5 | Large-scale achromatic flat lens by light frequency-domain coherence optimization显示文摘Flat lenses,including metalens and diffractive lens,have attracted increasing attention due to their ability to miniaturize the imaging devices.However,realizing a large scale achromatic flat lens with high performance still remains a big challenge.Here,we developed a new framework in designing achromatic multi-level diffractive lenses by light coherence optimization,which enables the implementation of large-scale flat lenses under non-ideal conditions.As results,a series achromatic polymer lenses with diameter from 1 to 10mm are successfully designed and fabricated.The subsequent optical characterizations substantially validate our theoretical framework and show relatively good performance of the centimeter-scale achromatic multi-level diffractive lenses with a super broad bandwidth in optical wavelengths(400-1100 nm).After comparing with conventional refractive lens,this achromatic lens shows significant advantages in white-light imaging performance,implying a new strategy in developing practical planar optical devices. | Xingjian Xiao Yunwei Zhao Xin Ye Chen Chen Xinmou Lu Yansen Rong Junhong Deng Guixin Li Shining Zhu Tao Li | 2022 | Light(Science & Applications)2022，11，12： | 2 |
| 6 | Chip-scale metalens microscope for wide-field and depth-of-field imaging显示文摘Microscopy is very important in research and industry,yet traditional optical microscopy suffers from the limited field-of-view(FOV)and depth-of-field(DOF)in high-resolution imaging.We demonstrate a simultaneous large FOV and DOF microscope imaging technology based on a chip-scale metalens device that is implemented by a SiNxmetalens array with a co-and cross-polarization multiplexed dual-phase design and dispersive spectrum zoom effect.A 4-mm×4-mm FOV is obtained with a resolution of 1.74μm and DOF of200μm within a wavelength range of 450 to 510 nm,which definitely exceeds the performance of traditional microscopes with the same resolution.Moreover,it is realized in a miniaturized compact prototype,showing an overall advantage for portable and convenient microscope technology. | Xin Ye Xiao Qian Yuxin Chen Rui Yuan Xingjian Xiao Chen Chen Wei Hu Chunyu Huang Shining Zhu Tao Li | 2022 | Advanced Photonics2022，4，4： | 2 |
| 7 | Revolutionary meta-imaging:from superlens to metalens显示文摘The refractive-lens technique has been well developed over a long period of evolution,offering powerful imaging functionalities,such as microscopes,telescopes,and spectroscopes.Nevertheless,the ever-growing requirements continue to urge further enhanced imaging capabilities and upgraded devices that are more compact for convenience.Metamaterial as a fascinating concept has inspired unprecedented new explorations in physics,material science,and optics,not only in fundamental researches but also novel applications.Along with the imaging topic,this paper reviews the progress of the flat lens as an important branch of metamaterials,covering the early superlens with super-diffraction capability and current hot topics of metalenses including a paralleled strategy of multilevel diffractive lenses.Numerous efforts and approaches have been dedicated to areas ranging from the new fascinating physics to feasible applications.This review provides a clear picture of the flat-lens evolution from the perspective of metamaterial design,elucidating the relation and comparison between a superlens and metalens,and addressing derivative designs.Finally,application scenarios that favor the ultrathin lens technique are emphasized with respect to possible revolutionary imaging devices,followed by conclusive remarks and prospects. | Tao Li Chen Chen Xingjian Xiao Ji Chen Shanshan Hu Shining Zhu | 2023 | Photonics Insights2023，2，1： | 2 |
| 8 | Bandpass-filter-integrated multiwavelength achromatic metalens显示文摘The design of large-scale,high-numerical-aperture,and broadband achromatism is a big challenge in metalens research. In fact,many colorful imaging systems have RGB color filters,which means the achromatism only for RGB lights would be sufficient. Avoiding broadband achromatism is expected to greatly improve the working efficiency of metalenses. Nevertheless,a proper bandpass filter is necessary under a white light illumination in the metalens integrated imaging system. Here we propose a bandpass-filter-integrated multiwavelength achromatic metalens (NA=0.2),which is designed using a searching optimization algorithm to achieve the achromatism of RGB lights with high efficiencies. The bandpass filter is implemented by composite DBRs and defect layers,by which three desired wavelengths are selected out. The simulations and experiments on the filter-integrated metalens definitely show a good RGB achromatism. Further imaging experiments demonstrate a higher signal-to-noise ratio and resolution compared with the one without the filter. Our approach provides not only an RGB achromatic meta-imaging device but also a new route to access a highly efficient spectrum tailoring metasystem by incorporating bandpass filter designs. | HANMENG LI XINGJIAN XIAO BIN FANG SHENGLUN GAO ZHIZHANG WANG CHEN CHEN YUNWEI ZHAO SHINING ZHU TAO LI | 2021 | Photonics Research2021，9，7： | 1 |
| 9 | Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces显示文摘Polarimetry plays an indispensable role in modern optics.Nevertheless,the current strategies generally suffer from bulky system volume or spatial multiplexing scheme,resulting in limited performances when dealing with inhomogeneous polarizations.Here,we propose a non-interleaved,interferometric method to analyze the polarizations based on a tri-channel chiral metasurface.A deep convolutional neural network is also incorporated to enable fast,robust and accurate polarimetry.Spatially uniform and nonuniform polarizations are both measured through the metasurface experimentally.Distinction between two semblable glasses is also demonstrated.Our strategy features the merits of compactness and high spatial resolution,and would inspire more intriguing design for detecting and sensing. | Chen Chen Xingjian Xiao Xin Ye Jiacheng Sun Jitao Ji Rongtao Yu Wange Song Shining Zhu Tao Li | 2023 | Light(Science & Applications)2023，12，12： | 0 |
| 10 | Exploring the Effectiveness of Gesture Interaction in Driver Assistance Systems via Virtual Reality显示文摘Dear editor,This letter presents a user study to explore the effectiveness of gesture interaction in driver assistance system(DAS).Distracted driving is a specific form of driver inattention and distraction occurs when the drivers'attention is diverted from the driving to other activities. | Tong Liu Mingwei Hu Shining Ma Yi Xiao Yue Liu Weitao Song | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，8： | 0 |
| 11 | Double-bowl state in photonic Dirac nodal line semimetal显示文摘The past decade has seen a proliferation of topological materials for both insulators and semimetals in electronic systems and classical waves.Topological semimetals exhibit topologically protected band degeneracies,such as nodal points and nodal lines.Dirac nodal line semimetals(DNLS),which own four-fold line degeneracy,have drawn particular attention.DNLSs have been studied in electronic systems but there is no photonic DNLS.Here in this work,we provide a new mechanism,which is unique for photonic systems to investigate a stringent photonic DNLS.When truncated,the photonic DNLS exhibits double-bowl states(DBS),which comprise two sets of perpendicularly polarized surface states.In sharp contrast to nondegenerate surface states in other photonic systems,here the two sets of surface states are almost degenerate over the whole-spectrum range.The DBS and the bulk Dirac nodal ring(DNR)dispersion along the relevant directions,are experimentally resolved. | Mengying Hu Ye Zhang Xi Jiang Tong Qiao Qiang Wang Shining Zhu Meng Xiao Hui Liu | 2021 | Light(Science & Applications)2021，10，9： | 0 |
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