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| 1 | Abscisic Acid Receptors:Past,Present and Future显示文摘Abscisic acid(ABA) is the key plant stress hormone.Consistent with the earlier studies in support of the presence of both membrane-and cytoplasm-localized ABA receptors,recent studies have identified multi-ple ABA receptors located in various subcellular locations.These include a chloroplast envelope-localized receptor(the H subunit of Chloro-plast Mg2+-chelatase/ABA Receptor),two plasma membrane-localized receptors(G-protein Coupled Receptor 2 and GPCR-type G proteins),and one cytosol/nucleus-localized Pyrabactin Resistant(PYR)/PYR-Like(PYL)/Regulatory Component of ABA Receptor 1(RCAR).Although the downstream molecular events for most of the identified ABA receptors are currently unknown,one of them,PYR/PYL/RCAR was found to directly bind and regulate the activity of a long-known central regulator of ABA signaling,the A-group protein phosphatase 2C(PP2C).Together with the Sucrose Non-fermentation Kinase Subfamily 2(SnRK2s) protein kinases,a central signaling complex(ABA-PYR-PP2Cs-SnRK2s) that is responsible for ABA signal perception and transduction is supported by abundant genetic,physiological,biochemical and structural evidence.The identification of multiple ABA receptors has advanced our understanding of ABA signal perception and transduction while adding an extra layer of complexity. | Jianjun Guo Xiaohan Yang David J. Weston Jin-Gui Chen | 2011 | Journal of Integrative Plant Biology2011，53，6： | 13 |
| 2 | Caspases control antiviral innate immunity显示文摘Caspases are a family of cysteine proteases whose functions have been scrutinized intensively in recent years.Beyond their established roles in programmed cell death and inflammatory response,some caspases are also fundamental players in antiviral immunity by fine-tuning the levels of antiviral signaling adapters and cytokines,such as type I interferons,which serves as a major,sophisticated weapon against viruses.Viral infections can result in inflammasome activation and the initiation of cell death,including apoptosis and pyroptosis,and multiple caspases are significantly involved in these processes.This review will focus on the cutting-edge discoveries regarding the multifaceted roles of caspases in antiviral innate immunity. | Huihui Chen Xiaohan Ning Zhengfan Jiang | 2017 | Cellular & Molecular Immunology2017，14，9： | 10 |
| 3 | Overview of China's Antarctic research progress 1984–2016显示文摘It is more than 30 years since the first Chinese National Antarctic Research Expedition(CHINARE) landed in Antarctica in 1984, representing China's initiation in polar research. This review briefly summarizes the Chinese Antarctic scientific research and output accomplished over the past 30 years. The developments and progress in Antarctic research and the enhancement of international scientific cooperation achieved through the implementation of the CHINARE program have been remarkable. Since the 1980 s, four permanent Chinese Antarctic research stations have been established successively and 33 CHINAREs have been completed. The research results have been derived from a series of spatiotemporal observations in association with various projects and multidisciplinary studies in the fields of oceanography, glaciology, geology, geophysics, geochemistry, atmospheric science, upper atmospheric physics, Antarctic astronomy, biology and ecology, human medicine, polar environment observation, and polar engineering. | CHEN Liqi LIU Xiaohan BIAN Lingen CHEN Bo HUANG Hongliang HU Hongqiao LUO Wei SHI Guitao SHI Jiuxin XU Chengli YANG Guang ZHAO Yue ZHANG Shaohua | 2017 | Advances in Polar Science2017，28，3： | 9 |
| 4 | Mapping the immune microenvironment for mandibular alveolar bone homeostasis at single-cell resolution显示文摘Alveolar bone is the thickened ridge of jaw bone that supports teeth.It is subject to constant occlusal force and pathogens invasion,and is therefore under active bone remodeling and immunomodulation.Alveolar bone holds a distinct niche from long bone considering their different developmental origin and postnatal remodeling pattern.However,a systematic explanation of alveolar bone at single-cell level is still lacking.Here,we construct a single-cell atlas of mouse mandibular alveolar bone through single-cell RNA sequencing(scRNA-seq).A more active immune microenvironment is identified in alveolar bone,with a higher proportion of mature immune cells than in long bone.Among all immune cell populations,the monocyte/macrophage subpopulation most actively interacts with mesenchymal stem cells(MSCs)subpopulation.Alveolar bone monocytes/macrophages express a higher level of Oncostatin M(Osm)compared to long bone,which promotes osteogenic differentiation and inhibits adipogenic differentiation of MSCs.In summary,our study reveals a unique immune microenvironment of alveolar bone,which may provide a more precise immune-modulatory target for therapeutic treatment of oral diseases. | Weimin Lin Qiwen Li Danting Zhang Xiaohan Zhang Xingying Qi Qian Wang Yaqian Chen Caojie Liu Hanwen Li Shiwen Zhang Yuan Wang Bin Shao Li Zhang Quan Yuan | 2021 | Bone Research2021，9，1： | 6 |
| 5 | Cyanobacteria-based near-infrared light-excited self-supplying oxygen system for enhanced photodynamic therapy of hypoxic tumors显示文摘Tumor hypoxia has been considered to induce tumor cell resistance to radiotherapy and anticancer chemotherapy,as well as predisposing for increased tumor metastases.Therefore,strategies for the eradication of the hypoxic tumor are highly desirable.Photodynamic therapy(PDT)is a new technique that can be used to treat tumors using laser irradiation to photochemically activate a photosensitizer.Compared to traditional radiotherapy and chemotherapy,photodynamic therapy has many advantages,such as good selectivity,low toxicity,and less trauma and resistance.However,PDT is oxygen-dependent,and the lack of oxygen in hypoxic tumors renders photodynamic therapy ineffective.Cyanobacteria,the earliest photosynthetic oxygen-generating organisms,can utilize water as an electron donor to reduce CO_(2) into organic carbon compounds along with continuously releasing oxygen under sunlight.Inspired by this,herein,cyanobacteria were used as a living carrier of photosensitizer conjugated upconversion nanoparticles(UCNP)to construct a self-supplying oxygen PDT system.Improvement in the PDT efficiency for hypoxic tumors can be achieved as a result of in situ oxygen production by cyanobacteria under near-infrared(NIR)light using UCNP as a light harvesting antenna.A successful demonstration of this concept would be of great significance and could open the door to a new generation of carrier systems in the field of hypoxia-targeted drug transport platforms. | Yinghua Zhang Huifang Liu Xinyue Dai Hang Li Xiaohan Zhou Shizhu Chen Jinchao Zhang Xing-Jie Liang Zhenhua Li | 2021 | Nano Research2021，14，3： | 4 |
| 6 | Hybrid Field-Effect Transistors and Photodetectors Based on Organic Semiconductor and CsPbI_3 Perovskite Nanorods Bilayer Structure显示文摘The outstanding performances of nanostructured allinorganic CsPbX_3(X = I, Br, Cl) perovskites in optoelectronic applications can be attributed to their unique combination of a suitable bandgap, high absorption coefficient, and long carrier lifetime, which are desirable for photodetectors. However, the photosensing performances of the CsPbI_3 nanomaterials are limited by their low charge-transport efficiency. In this study, a phototransistor with a bilayer structure of an organic semiconductor layer of 2,7-dioctyl [1] benzothieno[3,2-b] [1] benzothiophene and CsPbI_3 nanorod layer was fabricated. The high-quality CsPbI_3 nanorod layer obtained using a simple dip-coating method provided decent transistor performance of the hybrid transistor device.The perovskite layer efficiently absorbs light, while the organicsemiconductor layer acts as a transport channel for injected photogenerated carriers and provides gate modulation. The hybrid phototransistor exhibits high performance owing to the synergistic function of the photogating effect and field effect in the transistor,with a photoresponsivity as high as 4300 A W^(-1), ultra-high photosensitivity of 2.2 9 106, and excellent stability over 1 month.This study provides a strategy to combine the advantages of perovskite nanorods and organic semiconductors in fabrication of high-performance photodetectors. | Yantao Chen Xiaohan Wu Yingli Chu Jiachen Zhou Bilei Zhou Jia Huang | 2018 | Nano-Micro Letters2018，10，4： | 4 |
| 7 | Dichotomous roles of neutrophils in modulating pathogenic and repair processes of inflammatory bowel diseases显示文摘Neutrophils are considered as complex innate immune cells and play a critical role in maintaining intestinal mucosal homeostasis.They exert robust pro-inflammatory effects and recruit other immune cells in the acute phase of pathogen infection and intestinal inflammation,but paradoxically,they also limit exogenousmicrobial invasion and facilitate mucosal restoration.Hyperactivation or dysfunction of neutrophils results in abnormal immune responses,leading to multiple autoimmune and inflammatory diseases including systemic lupus erythematosus,rheumatoid arthritis,and inflammatory bowel diseases(IBD).As a refractory intestinal inflammatory disease,the pathogenesis and progression of IBD are associated with complicated immune response processes in which neutrophils are profoundly involved.However,the consensus on potential roles of neutrophils in modulating pathogenic and repair processes of IBD remains not fully understood.Accumulated infiltrating neutrophils cross the epithelial barrier and contribute to microbial dysbiosis,aggravated intestinal architectural damage,compromised resolution of intestinal inflammation and increased risk of thrombosis during IBD.Paradoxically,activated neutrophils are also associated with effective elimination of invaded microbiota,promoted angiogenesis and tissue restoration of gutmucosa in IBD.Here,we discuss the beneficial and detrimental roles of neutrophils in the onset and resolution of intestinalmucosal inflammation,hoping to provide a precise overview of neutrophil functions in the pathogenesis of IBD. | Huimin Chen Xiaohan Wu Chunjin Xu Jian Lin Zhanju Liu | 2021 | Precision Clinical Medicine2021，4，4： | 3 |
| 8 | Changes in Vegetation and Assessment of Meteorological Conditions in Ecologically Fragile Karst Areas显示文摘Meteorological conditions have an important impact on changes of vegetation in ecologically fragile karst areas.This study aims to explore a method for quantitative evaluation of these meteorological conditions. We analyzed the changing trend of vegetation during 2000–2018 and the correlations between vegetation changes and various meteorological factors in karst rocky areas of Guangxi Zhuang Autonomous Region, China. Key meteorological factors in vegetation areas with varying degrees of improvement were selected and evaluated at seasonal timescale. A quantitative evaluation model of comprehensive influences of meteorological factors on vegetation was built by using the partial least-square regression(PLS). About 91.45% of the vegetation tended to be improved, while only the rest 8.55% showed a trend of degradation from 2000 to 2018. Areas with evident vegetation improvement were mainly distributed in the middle and northeast, and those with obvious vegetation degradation were scattered. Meteorological factors affecting vegetation were significantly different among the four seasons. Overall, high air humidity, small temperature difference in spring and autumn, and low daily minimum temperature and air pressure were favorable conditions. Low temperature in winter as well as high temperature in summer and autumn were unfavorable conditions. The Climate Vegetation Index(CVI) model was established by PLS using the maximum, minimum, and average temperatures;vapor pressure;rainfall;and air pressure as key meteorological factors. The Enhanced Vegetation Index(EVI) was well fitted by the CVI model, with the average coefficient of determination(r2) and root mean square error(RMSE) of 0.856 and 0.042, respectively. Finally, an assessment model of comprehensive meteorological conditions was built based on the interannual differences in CVI. The meteorological conditions in the study area in 2014 were successfully evaluated by combining the model and selected seasonal key meteorological factors. | Yanli CHEN Weihua MO Yonglin HUANG Jianfei MO Xiaohan HUANG Xiumei WEN | 2021 | Journal of Meteorological Research2021，35，1： | 3 |
| 9 | Precise Background Noise Power Estimate for Echo Cancellation显示文摘The reconstruction of background noise from an error signal of an adaptive filter is a key issue for developing Variable Step-Size Normalized Least Mean Square (VSS-NLMS) algorithm in the context of Echo Cancellation (EC). The core parameter in this algorithm is the Background Noise Power (BNP); in the estimation of BNP, the power difference between the desired signal and the filter output, statistically equaling to the error signal power, has been widely used in a rough manner. In this study, a precise BNP estimate is implemented by multiplying the rough estimate with a corrective factor, taking into consideration the fact that the error signal consists of background noise and misalignment noise. This corrective factor is obtained by subtracting half of the latest VSS value from 1 after analyzing the ratio of BNP to the misalignment noise. Based on the precise BNP estimate, the PVSS-NLMS algorithm suitable for the EC system is eventually proposed. In practice, the proposed algorithm exhibits a significant advantage of easier controllability application, as prior knowledge of the EC environment can be neglected. The simulation results support the preciseness of the BNP estimation and the effectiveness of the proposed algorithm. | Wen Haoxiang Lai Xiaohan Chen Longdao | 2012 | China Communications2012，9，11： | 2 |
| 10 | Nonvolatile reconfigurable dynamic Janus metasurfaces in the terahertz regime显示文摘Metasurfaces,especially tunable ones,have played a major role in controlling the amplitude,phase,and polarization of electromagnetic waves and attracted growing interest,with a view toward a new generation of miniaturized devices.However,to date,most existing reconfigurable devices are bounded in volatile nature with sustained external energy to maintain and single functionality,which restrict their further applications.Here,we demonstrate for the first time,to our knowledge,nonvolatile,reconfigurable,and dynamic Janus metasurfaces by incorporating phase-change material Ge_(2)Se_(2)Te_(5)(GST)in the terahertz(THz)regime.First,we experimentally show the reversible switching characteristic of GST on large areas by applying a single nanosecond laser pulse,which exhibits excellent contrast of THz properties in both states.Then,we present a multiplex metasurface scheme.In each metasurface,three sets of structures are adopted,in which two sets integrate GST.The effective structures can be reversely modulated by the amorphization and crystallization of GST.As a proof of concept,the dynamic beam splitter,bifocal metalens,dual-mode focusing optical vortex generators,and switchable metalens/focusing optical vortex generators are designed,fabricated,and experimentally characterized,and can be switched reversibly and repeatedly with the help of optical and thermal stimuli.Our scheme will pave the way toward the development of multifunctional and compact THz devices and may find use for applications in THz imaging,sensing,and communications. | SHOUJUN ZHANG XIEYU CHEN KUAN LIU HAIYANG LI YUEHONG XU XIAOHAN JIANG YIHAN XU QINGWEI WANG TUN CAO ZHEN TIAN | 2022 | Photonics Research2022，10，7： | 2 |
| 11 | Enhanced efficiency of graphene-silicon Schottky junction solar cell through inverted pyramid arrays texturation显示文摘Nanostructures of silicon are gradually becoming hot candidate due to outstanding capability for trapping light and improving conversion efficiency of solar cell. In this paper, silicon nanowires(SiNWs) and silicon inverted pyramid arrays(SiIPs) were introduced on surface of Gr-Si solar cell through silver and copper-catalyzed chemical etching, respectively. The effects of SiNWs and SiIPs on carrier lifetime, optical properties and efficiency of Gr-SiNWs and Gr-SiIPs solar cells were systematically analyzed. The results show that the inverted pyramid arrays have more excellent ability for balancing antireflectance loss and surface area enlargement. The power conversion efficiency(PCE) and carrier lifetime of Gr-SiIPs devices respectively increase by 62% and 34% by comparing with that of Gr-SiNWs solar cells. Finally, the Gr-SiIPs cell with PCE of 5.63% was successfully achieved through nitric acid doping. This work proposes a new strategy to introduce the inverted pyramid arrays for improving the performance of Gr-Si solar cells. | Jiajia Qiu Yudong Shang Xiuhua Chen Shaoyuan Li Wenhui Ma Xiaohan Wan Jia Yang Yun Lei Zhengjie Chen | 2018 | Journal of Materials Science & Technology2018，34，11： | 2 |
| 12 | A method based on preference degrees for handling hybrid multiple attribute decision making problems显示文摘 | Xiaohan Yu Zeshui Xu Qi Chen | 2010 | Expert Systems With Applications2010，，4： | 2 |
| 13 | Recent advances in electrochemical sensors for antibiotics and their applications显示文摘The abuse of antibiotics will cause an increase of drug-resistant strains and environmental pollution,which in turn will affect human health.Therefore,it is important to develop effective detection techniques to determine the level of antibiotics contamination in various fields.Compared with traditional detection methods,electrochemical sensors have received extensive attention due to their advantages such as high sensitivity,low detection limit,and good selectivity.In this mini review,we summarized the latest developments and new trends in electrochemical sensors for antibiotics.Here,modification methods and materials of electrode are discussed.We also pay more attention to the practical applications of antibiotics electrochemical sensors in different fields.In addition,the existing problems and the future challenges ahead have been proposed.We hope that this review can provide new ideas for the development of electrochemical sensors for antibiotics in the future. | Qun Wang Qiang Xue Tao Chen Jiawei Li Yuehua Liu Xiaohan Shan Fei Liu Jianbo Jia | 2021 | Chinese Chemical Letters2021，32，2： | 2 |
| 14 | Cybertwin-Assisted Mode Selection in Ultra-Dense LEO Integrated Satellite-Terrestrial Network显示文摘Ultra-dense low earth orbit(LEO)integrated satellite-terrestrial network(ULISTN)has become an emerging paradigm to support massive access of Internet of things(IoT)in beyond fifth generation mobile networks(B5G).In ULISTN,there are two communication modes:cellular mode and satellite mode,where IoT users assessing terrestrial small base stations(TSBSs)and terrestrial-satellite terminals(TSTs)respectively.However,how to optimize the network performance and guarantee self-interests of the operator and IoT users in ULISTN is a challenging issue.In this paper,we propose a cybertwin-assisted joint mode selection and dynamic pricing(JMSDP)scheme for effective network management in ULISTN,where cybertwin serves as the intelligent agent.In JMSDP,the operator determines optimal access prices of TSBSs and TSTs,while each user selects the access mode according to access prices.Specifically,the operator conducts the Stackelberg game aiming at maximizing average throughput depending on the mode selection results of IoT users.Meanwhile,IoT users as followers adopt the evolutionary game to choose an access mode based on the access prices provided by the operator.Simulation results show that the proposed JMSDP can improve the average throughput and reduce the delay effectively,comparing with random access(RA)and maximum rate access. | Xin Zhang Bo Qian Xiaohan Qin Ting Ma Jiachen Chen Haibo Zhou Xuemin(Sherman)Shen | 2022 | Journal of Communications and Information Networks2022，7，4： | 1 |
| 15 | Reconfigurable and nonvolatile terahertz lithography-free photonic devices based on phase change films显示文摘High-performance terahertz(THz)devices with reconfigurable features are highly desirable in many promising THz applications.However,most of the existing reconfigurable THz elements are still limited to volatile responses,single functionality,and time-consuming multistep manufacturing procedures.In this paper,we report a lithography-free approach to create reconfigurable and nonvolatile THz components by exploring the reversible,nonvolatile,and continuous THz modulation capability of the phase change material Ge_(2)Sb_(2)Te_(5).As a proof of concept,THz gratings with significant Rayleigh anomalies and diffraction as well as ultrathin THz flat lenses with subwavelength and ultra-broadband focusing capabilities are designed and fabricated on ultrathin Ge_(2)Sb_(2)Te_(5)films using the presented photo-imprint strategy.Moreover,such a method can also be adopted to create more complex THz devices,such as Pancharatnam–Berry phase metasurfaces and grayscale holographic plates.With these findings,the proposed method will provide a promising solution to realize reconfigurable and nonvolatile THz elements. | XIEYU CHEN SHOUJUN ZHANG KUAN LIU YUEHONG XU XIAOHAN JIANG HAIYANG LI XI FENG QINGWEI WANG YONGCHANG LU KEMENG WANG TUN CAO ZHEN TIAN | 2023 | Photonics Research2023，11，4： | 1 |
| 16 | 2 μm optical frequency comb generation via optical parametric oscillation from a lithium niobate optical superlattice box resonator显示文摘Optical parametric oscillators(OPOs) can downconvert the pump laser to longer wavelengths with octave separation via χ^((2)), which is widely used for laser wavelength extension including mid-infrared(MIR) generation.Such a process can be integrated in monolithic resonators, being compact and low in threshold. In this work, we show that the monolithic χ^((2))mini-OPO can also be used for optical frequency comb generation around 2096 nm and enters the boundary of MIR range. A new geometry called an optical superlattice box resonator is developed for this realization with near-material-limited quality factor of 4.0 × 10^(7). Only a continuous-wave near-infrared pump laser is required, with OPO threshold of 80 mW and output power up to 340 mW. Revival temporal profiles are measured at a detectable repetition frequency of 1.426 GHz, and narrow beat note linewidth of less than 10 Hz shows high comb coherence. These results are in good agreement with our simulation for a stable comb generation. Such an OPO-based comb source is useful for carbon dioxide sensing or the mine prospect applications and can be generalized to longer MIR wavelengths for general gas spectroscopy. | Xiaohan Wang Kunpeng Jia Mengwen Chen Shanshan Cheng Xin Ni Jian Guo Yihao Li Huaying Liu Liyun Hao Jian Ning Gang Zhao Xinjie Lv Shu-Wei Huang Zhenda Xie Shi-Ning Zhu | 2022 | Photonics Research2022，10，2： | 1 |
| 17 | Dynamic changes in O-GlcNAcylation regulate osteoclast differentiation and bone loss via nucleoporin 153显示文摘Bone mass is maintained by the balance between osteoclast-induced bone resorption and osteoblast-triggered bone formation.In inflammatory arthritis such as rheumatoid arthritis(RA),however,increased osteoclast differentiation and activity skew this balance resulting in progressive bone loss.O-GlcNAcylation is a posttranslational modification with attachment of a single O-linkedβ-D-N-acetylglucosamine(O-GlcNAc)residue to serine or threonine residues of target proteins.Although O-GlcNAcylation is one of the most common protein modifications,its role in bone homeostasis has not been systematically investigated.We demonstrate that dynamic changes in O-GlcNAcylation are required for osteoclastogenesis.Increased O-GlcNAcylation promotes osteoclast differentiation during the early stages,whereas its downregulation is required for osteoclast maturation.At the molecular level,O-GlcNAcylation affects several pathways including oxidative phosphorylation and cell-cell fusion.TNFαfosters the dynamic regulation of O-GlcNAcylation to promote osteoclastogenesis in inflammatory arthritis.Targeted pharmaceutical or genetic inhibition of O-GlcNAc transferase(OGT)or O-GlcNAcase(OGA)arrests osteoclast differentiation during early stages of differentiation and during later maturation,respectively,and ameliorates bone loss in experimental arthritis.Knockdown of NUP153,an O-GlcNAcylation target,has similar effects as OGT inhibition and inhibits osteoclastogenesis.These findings highlight an important role of O-GlcNAcylation in osteoclastogenesis and may offer the potential to therapeutically interfere with pathologic bone resorption. | Yi-Nan Li Chih-Wei Chen Thuong Trinh-Minh Honglin Zhu Alexandru-Emil Matei Andrea-Hermina Györfi Frederic Kuwert Philipp Hubel Xiao Ding Cuong Tran Manh Xiaohan Xu Christoph Liebel Vladyslav Fedorchenko Ruifang Liang Kaiyue Huang Jens Pfannstiel Min-Chuan Huang Neng-Yu Lin Andreas Ramming Georg Schett Jörg H.W.Distler | 2022 | Bone Research2022，10，4： | 1 |
| 18 | Glucose-6-phosphate dehydrogenase neutralizes stresses by supporting reductive glutamine metabolism and AMPK activation显示文摘Dear Editor,Glucose-6-phosphate dehydrogenase(G6PD)is the rate-limiting enzyme in the oxidative pentose phosphate pathway(oxPPP)that can generate cytosolic NADPH(Fig.1a)for biosynthesis and oxidative defence.Here,we reveal a previously unidentified function of G6PD.It,even the natural G6PD deficiency-associated mutant without the activity to maintain the normal oxPPP,can antagonize the stresses by supporting the reductive glutamine metabolism and AMPK activation,independently of the NADPH generation by the oxPPP. | Benfu Zhong Dewei Jiang Yang Hong Lifang Li Li Qiu Ronghui Yang Xiaohan Jin Yawen Song Ceshi Chen Binghui Li | 2021 | Signal Transduction and Targeted Therapy2021，6，3： | 1 |
| 19 | Design of a compact C-band high brightness photoinjector for an ultra-fast electron diffraction显示文摘A compact C-band high brightness photoinjector for ultra-fast electron diffraction(UED)is under development at Tsinghua University.The C-band photoinjector,operating at 5.172 GHz,uses a 1.45-cell C-band RF gun as the electron source.The design of the RF gun has addressed the physics,beam dynamics and mechanical aspects,and based on these design studies,a prototype has been fabricated.In order to obtain optimized performance for the UED,beam dynamics simulation has been carried out using the particle tracking code Astra for the photoinjector consisting of an alternative multi-cell RF gun design and a C-band compressor downstream.The beam dynamics parameters that are optimized include the bunch length,peak current,horizontal emittance,and position of the minimum bunch length. | LIU XiaoHan TANG ChuanXiang QIAN HouJun CHEN HuaiBi HUANG WenHui | 2013 | Chinese Science Bulletin2013，58，36： | 1 |
| 20 | Phase characterisation of metalenses显示文摘Metalenses have emerged as a new optical element or system in recent years,showing superior performance and abundant applications.However,the phase distribution of a metalens has not been measured directly up to now,hindering further quantitative evaluation of its performance.We have developed an interferometric imaging phase measurement system to measure the phase distribution of a metalens by taking only one photo of the interference pattern.Based on the measured phase distribution,we analyse the negative chromatic aberration effect of monochromatic metalenses and propose a feature size of metalenses.Different sensitivities of the phase response to wavelength between the Pancharatnam-Berry phase-based metalens and propagation phase-reliant metalens are directly observed in the experiment.Furthermore,through phase distribution analysis,it is found that the distance between the measured metalens and the brightest spot of focusing will deviate from the focal length when the metalens has a low nominal numerical aperture,even though the metalens is ideal without any fabrication error.We also use the measured phase distribution to quantitatively characterise the imaging performance of the metalens.Our phase measurement system will help not only designers optimise the designs of metalenses but also fabricants distinguish defects to improve the fabrication process,which will pave the way for metalenses in industrial applications. | Maoxiong Zhao Mu Ku Chen Ze-Peng Zhuang Yiwen Zhang Ang Chen Qinmiao Chen Wenzhe Liu Jiajun Wang Ze-Ming Chen Bo Wang Xiaohan Liu Haiwei Yin Shumin Xiao Lei Shi Jian-Wen Dong Jian Zi Din Ping Tsai | 2021 | Light(Science & Applications)2021，10，4： | 1 |
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