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| 1 | Application of P507 and isooctanol extraction system in recovery of scandium from simulated red mud leach solution显示文摘The current recovery technique of Sc was complicated and the chemical consumption was high,This was due to the low content of Sc in resources and the difficulty of stripping.In this research,the isooctanol was added into the 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester(P507)extraction system to reduce the extraction and improve the stripping of Sc.The maximum stripping ratio of Sc from loaded organic phase by sulfuric acid can increase from 10%(without isooctanol)to 99%(with 15 vol%isooctanol).In the extraction test of the simulated red mud leaching liquor,the separation factors between Sc and Zr,Sc and Ti are 36 and 350,separately.At the same time,other metals are almost not extracted.The high selectivity and stripping of Sc suggest that the P507 with isooctanol extraction system can be applied in the practical Sc recovery process. | Chuanying Liu Li Chen Ji Chen Dan Zou Yuefeng Deng Deqian Li | 2019 | Journal of Rare Earths2019，37，9： | 22 |
| 2 | 5G Flexible Optical Transport Networks with Large-Capacity, Low-Latency and High-Efficiency显示文摘The fifth generation(5G) of mobile communications are facing big challenges, due to the proliferation of diversified terminals and unprecedented services such as internet of things(IoT), high-definition videos, virtual/augmented reality(VR/AR). To accommodate massive connections and astonish mobile traffic, an efficient 5G transport network is required. Optical transport network has been demonstrated to play an important role for carrying 5G radio signals. This paper focuses on the future challenges, recent studies and potential solutions for the 5G flexible optical transport networks with the performances on large-capacity, low-latency and high-efficiency. In addition, we discuss the technology development trends of the 5G transport networks in terms of the optical device, optical transport system, optical switching, and optical networking. Finally, we conclude the paper with the improvement of network intelligence enabled by these technologies to deterministic content delivery over 5G optical transport networks. | Yuefeng Ji Jiawei Zhang Yuming Xiao Zhen Liu | 2019 | China Communications2019，16，5： | 9 |
| 3 | Photonic integrated technology for multi-wavelength laser emission显示文摘We summarized the design, fabrication challenges and important technologies for multi-wavelength laser transmitting photonic integration. Technologies discussed include multi-wavelength laser arrays, monolithic integration and modularizing coupling and packaging. Fabrication technique requirements have significantly declined with the rise of reconstruction-equivalent-chirp and second nanoimprint mask technologies. The monolithic integration problem between active and passive waveguides can be overcome with Butt-joint and InP array waveguide grating technologies. The dynamic characteristics of multi-factors will be simultaneously measured with multi-port analyzing modules. The performance of photonic integration chips is significantly improved with the autoecious factors compensation packaging technique. | CHEN XiangFei LIU Wen AN JunMing LIU Yu XU Kun WANG Xin LIU JianGuo JI YueFeng ZHU NingHua | 2011 | Chinese Science Bulletin2011，56，28： | 9 |
| 4 | An Adaptive-Evolution-based Quantum Genetic Algorithm for QoS Multicast Routing Problem显示文摘 | XING Huanlai JI Yuefeng BAI Lin LIU Xin | 2009 | Chinese Journal of Electronics2009，18，3： | 5 |
| 5 | Real-time monitoring of hydrogel phase transition in an ultrahigh Q microbubble resonator显示文摘The ability to sense dynamic biochemical reactions and material processes is particularly crucial for a wide range of applications,such as early-stage disease diagnosis and biomedicine development.Optical microcavities-based label-free biosensors are renowned for ultrahigh sensitivities,and the detection limit has reached a single nanoparticle/molecule level.In particular,a microbubble resonator combined with an ultrahigh quality factor(Q)and inherent microfluidic channel is an intriguing platform for optical biosensing in an aqueous environment.In this work,an ultrahigh Q microbubble resonator-based sensor is used to characterize dynamic phase transition of a thermosensitive hydrogel.Experimentally,by monitoring resonance wavelength shift and linewidth broadening,we(for the first time to our knowledge)reveal that the refractive index is increased and light scattering is enhanced simultaneously during the hydrogel hydrophobic transition process.The platform demonstrated here paves the way to microfluidical biochemical dynamic detection and can be further adapted to investigating single-molecule kinetics. | DAQUAN YANG AIQIANG WANG JIN-HUI CHEN XIAO-CHONG YU CHUWEN LAN YUEFENG JI YUN-FENG XIAO | 2020 | Photonics Research2020，8，4： | 5 |
| 6 | Microwave photonics: radio-over-fiber links, systems, and applications [Invited]显示文摘Microwave photonics(MWPs)uses the strength of photonic techniques to generate,process,control,and distribute microwave signals,combining the advantages of microwaves and photonics.As one of the main topics of MWP,radio-over-fiber(RoF)links can provide features that are very difficult or even impossible to achieve with traditional technologies.Meanwhile,a considerable number of signal-processing subsystems have been carried out in the field of MWP as they are instrumental for the implementation of many functionalities.However,there are still several challenges in strengthening the performance of the technology to support systems and applications with more complex structures,multiple functionality,larger bandwidth,and larger processing capability.In this paper,we identify some of the notable challenges in MWP and review our recent work.Applications and future direction of research are also discussed. | Kun Xu Ruixin Wang Yitang Dai Feifei Yin Jianqiang Li Yuefeng Ji Jintong Lin | 2014 | Photonics Research2014，2，4： | 4 |
| 7 | New Fabrication and Mechanical Properties of Styrene-Butadiene Rubber/Carbon Nanotubes Nanocomposite显示文摘A novel technology to prepare styrene-butadiene rubber(SBR)/carbon nanotubes(CNTs) composites was developed by combining a spray drying method and a subsequent mechanical mixing process.The cross-linking degrees of the vulcanized composites increased gradually with the additive CNTs contents.By comparing with those of the pure SBR composites,the mechanical properties such as tensile strength,tear strength and hardness of the composites filled with CNTs at certain contents were dramatically improved almost by 600%,250% and 70%,respectively.The fabrication of the CNTs filled with SBR composites by combination of the spray drying method and subsequent mechanical mixing process was effective for enhancing the reinforcement effects of CNTs in rubbers.The novel technology can also open a new route for the modification and reinforcement on the nanocomposites with large amount of CNTs. | Xiangwen Zhou Yuefeng Zhu Ji Liang Suyuan Yu | 2010 | Journal of Materials Science & Technology2010，26，12： | 4 |
| 8 | Towards converged, collaborative and co-automatic (3C) optical networks显示文摘The interconnection of all things is developing a new diagram of future information networks.However, it is difficult to realize future applications with only one single technique. Collaboration between multiple advanced techniques is leading the way for the development of future information networks. Optical communication is an enabling technique to achieve high speed, long reach, and low latency communication,which plays an important role on the transformation of information networks. To achieve these advantages that caters to the characteristics of future information networks, collaboration of multiple advanced techniques with optical, which is called 'optical plus X', could realize the vision of 'all things connected with networks'. In this paper, we focus on the collaboration between optical networks with other techniques,mainly discuss four representative aspects, which are 'optical plus IP', 'optical plus radio', 'optical plus computing', and 'optical plus AI'. We discuss the challenges, timely works, and developing trends. Finally,we give the future visions for optical network towards a collaborative, converged and co-automatic optical network. | Yuefeng JI Jiawei ZHANG Xin WANG Hao YU | 2018 | Science China(Information Sciences)2018，61，12： | 4 |
| 9 | Prospects and research issues in multi-dimensional all optical networks显示文摘Research into all optical network(AON) technology has been ongoing over the past decade, and new features are constantly being developed. The advantages of AON include large-bandwidth provisioning, lowlatency transmission and low energy consumption. The basic concept underlying AON is transmission of data signals entirely through the optical domain from source to destination nodes, with no optical-electrical-optical(O-E-O) conversion at intermediate nodes. The technologies used to implement AON have undergone a series of evolutions, which encompass time division multiplexing(TDM), frequency division multiplexing(FDM), and space division multiplexing(SDM). Multi-dimensional AON(MD-AON), which leads the trend of AON's future architecture, provides a vibrant state for emerging applications such as cloud computing and Internet of Things(Io T). In this article, we review the evolution of AON architectures based on the different all optical switching and multiplexing technologies(i.e., TDM, FDM, and SDM), which is one of the main areas of focus in this article.The other main area is detailed discussion of implementations such as data plane and control plane technologies as well as resource optimization technologies for realizing AON. We also introduce several AON testbeds with their compositions and functions, and some potential application scenarios that can be implemented based on these | Yuefeng JI Jiawei ZHANG Yongli ZHAO Xiaosong YU Jie ZHANG Xue CHEN | 2016 | Science China(Information Sciences)2016，59，10： | 3 |
| 10 | Analysis and experimentation of key technologies in service-oriented optical internet显示文摘To satisfy diverse bandwidth-intensive applications envisioned in the internet of the future, research on a distributed optical internet, enabling efficient utilization of geographically distributed resources, has become attractive. The deployment of such a network, however, has its own technical challenges, including network architecture, resource management, and high-speed transmission. To address these issues, a service-oriented-architecture-based distributed optical internet architecture is proposed. Thereafter, key technologies of an optical internet, such as optical multicasting, distributed resource control, and high-speed transmission, are analyzed and investigated. The proposed schemes are verified through experimentation and simulation. | JI YueFeng REN DanPing LI Hui LIU XueJun WANG ZhengZhong | 2011 | Science China(Information Sciences)2011，54，2： | 3 |
| 11 | Opaque virtual network mapping algorithms based on available spectrum adjacency for elastic optical networks显示文摘Optical network virtualization enables multiple virtual optical networks constructed for different infrastructure users(renters) or applications to coexist over a physical infrastructure. Virtual optical network(VON) mapping algorithm is used to allocate necessary resources in the physical infrastructure to the VON requests(VRs). In this paper, we investigate the opaque VON mapping problems in elastic optical networks(EONs). Based on the concept of available spectrum adjacency(AvS A) on links or paths, we consider both node resource and AvS A on links for node mapping, and present a link mapping method which chooses the routing and spectrum plan whose AvS A on paths is the largest among all the candidates. Finally, the overall VON mapping algorithm(i.e., AvS A-opaque VON mapping, AvS A-OVONM) coordinated node and link mapping is proposed. Extensive simulations are conducted and the results show that AvS A-OVONM has better performance of blocking probability and revenue-to-cost ratio than current algorithms. | Hongxiang WANG Jingxi ZHAO Hui LI Yuefeng JI | 2016 | Science China(Information Sciences)2016，59，4： | 3 |
| 12 | Multi-channel phase regeneration of QPSK signals based on phase sensitive amplification显示文摘In this paper,we propose and demonstrate simultaneous phase regeneration of four different channels of QPSK signal based on phase sensitive amplification.The configuration can be divided into two parts.The first one uses four wave mixing in high nonlinear fiber(HNLF)to generate the corresponding three harmonic conjugates precisely at the frequency of the original signals.The other one uses optical combiner to realize coherent addition which is aimed at completely removing the interaction in phase regeneration stage.The simulation results suggest that this scheme can optimize signal constellation to a large extend especially in high noise environment.Besides,optical signal to noise ratio(OSNR)can improve more than 3 dB while the bit-error-rate(BER)reaches 10 – 3 with a constant white noise and 15° phase noise. | Hongxiang WANG Tiantian LUO Yuefeng JI | 2019 | Frontiers of Optoelectronics2019，12，1： | 3 |
| 13 | Dual-periodic-microstructure-induced color tunable white organic Ught-emitting devices显示文摘 | Yangang BI Jinhai JI Yang CHEN Yushan LIU Xulin ZHANG Yunfei LI Ming XU Yuefeng LIU Xiaochi HAN Qiang GAO Hongbo SUN | 2016 | Frontiers of Optoelectronics2016，9，2： | 2 |
| 14 | Extraction and recovery of cerium(IV) and fluorine(I) from sulfuric solutions using bifunctional ionic liquid extractants显示文摘 | Dongli Zhang Wei Wang Yuefeng Deng Jianping Zhang He Zhao Ji Chen | 2011 | Chemical Engineering Journal2011，，： | 2 |
| 15 | A review on solvent extraction of scandium显示文摘This review article on the development course of scandium solvent extraction covers:(i)neutral phosphorus extractants;(ii)acid phosphorus extractants;(iii)carboxylic acid extractants;(iv)amine extractants;(v)chelating extractants;(vi)synergistic extractants.Those extractants are of valuable reference for developing new separation process of scandium from red mud,titanium dioride and other rare earth resources. | Dan Zou Yuefeng Deng Ji Chen Deqian Li | 2022 | Journal of Rare Earths2022，40，10： | 2 |
| 16 | Special focus on artificial intelligence for optical communications显示文摘Artificial intelligence(AI)and its related techniques bring new vitality and provide new approaches to optical communications,and enable new system design and thus new industries.Therefore,research attention and dedication have been attracted continuously from both academia and industry.In particular,combining AI and existing techniques in optical communication systems and networks. | Yuefeng JI Chao LU Darko ZIBAR Huanlai XING | 2020 | Science China(Information Sciences)2020，63，6： | 2 |
| 17 | Single nanoparticle trapping based on on-chip nanoslotted nanobeam cavities显示文摘Optical trapping techniques are of great interest since they have the advantage of enabling the direct handling of nanoparticles. Among various optical trapping systems, photonic crystal nanobeam cavities have attracted great attention for integrated on-chip trapping and manipulation. However, optical trapping with high efficiency and low input power is still a big challenge in nanobeam cavities because most of the light energy is confined within the solid dielectric region. To this end, by incorporating a nanoslotted structure into an ultracompact onedimensional photonic crystal nanobeam cavity structure, we design a promising on-chip device with ultralarge trapping potential depth to enhance the optical trapping characteristic of the cavity. In this work, we first provide a systematic analysis of the optical trapping force for an airborne polystyrene(PS) nanoparticle trapped in a cavity model. Then, to validate the theoretical analysis, the numerical simulation proof is demonstrated in detail by using the three-dimensional finite element method. For trapping a PS nanoparticle of 10 nm radius within the air-slot, a maximum trapping force as high as 8.28 nN/mW and a depth of trapping potential as large as 1.15 × 10~5 k_BT mW^(-1) are obtained, where k B is the Boltzmann constant and T is the system temperature.We estimate a lateral trapping stiffness of 167.17 pN · nm^(-1)· mW^(-1) for a 10 nm radius PS nanoparticle along the cavity x-axis, more than two orders of magnitude higher than previously demonstrated on-chip, near field traps. Moreover, the threshold power for stable trapping as low as 0.087 μW is achieved. In addition, trapping of a single 25 nm radius PS nanoparticle causes a 0.6 nm redshift in peak wavelength. Thus, the proposed cavity device can be used to detect single nanoparticle trapping by monitoring the resonant peak wavelength shift. We believe that the architecture with features of an ultracompact footprint, high integrability with optical waveguides/circuits, and efficient trapping demonstrated here will provide a promising candidate for developing a lab-on-a-chip device with versatile functionalities. | DAQUAN YANG FEI GAO QI-TAo CAO CHUAN WANG YUEFENG JI AND YuN-FENG XIAO | 2018 | Photonics Research2018，6，2： | 2 |
| 18 | The C_(6)D_(6)detector system on the Back-n beam line of CSNS显示文摘Introduction The neutron capture cross sections are very important in the field of nuclear device design and basic physics research.Hydrogen-free liquid scintillator such as C_(6)D_(6)detectors are widely used in the neutron capture cross-sectional measurements for the low neutron sensitivity and fast time response.The Back-n white neutron source at China Spallation Neutron Source is the first spallation white neutron source in China,and it is suitable for neutron capture cross-sectional measurement.Materials and methods A C_(6)D_(6)detector system was built in the Back-n experimental station.The pulse height weighting technique was used to determine the system’s detection efficiency.The response to gamma rays of the C_(6)D_(6)detector was measured,and the energy resolution function was determined.Monte Carlo simulation with Geant4 code was carried out to get the weighting function of this C_(6)D_(6)detector system.Additionally,the systematic uncertainty of the weighting function was also determined.Conclusion According to the experimental and simulation results,this C_(6)D_(6)detector system can be used to measure neutron capture cross section. | Jie Ren Xichao Ruan Jie Bao Guangyuan Luan Wei Jiang Qi An Huaiyong Bai Ping Cao Qiping Chen Yonghao Chen Pinjing Cheng Zengqi Cui Ruirui Fan Changqing Feng Minhao Gu Fengqin Guo Changcai Han Zijie Han Guozhu He Yongcheng He Yuefeng He Hanxiong Huang Weiling Huang Xiru Huang Xiaolu Ji Xuyang Ji Haoyu Jiang Hantao Jing Ling Kang Mingtao Kang Bo Li Lun Li Qiang Li Xiao Li Yang Li Yang Li Rong Liu Shubin Liu Xingyan Liu Yinglin Ma Changjun Ning Binbin Qi Zhaohui Song Hong Sun Xiaoyang Sun Zhijia Sun Zhixin Tan Hongqing Tang Jingyu Tang Pengcheng Wang Qi Wang Taofeng Wang Yanfeng Wang Zhaohui Wang Zheng Wang Jie Wen Zhongwei Wen Qingbiao Wu Xiaoguang Wu Xuan Wu Likun Xie Yiwei Yang Han Yi Li Yu Tao Yu Yongji Yu Guohui Zhang Jing Zhang Linhao Zhang Liying Zhang Qingmin Zhang Qiwei Zhang Xianpeng Zhang Yuliang Zhang Zhiyong Zhang Yingtan Zhao Liang Zhou Zuying Zhou Danyang Zhu Kejun Zhu Peng Zhu | 2019 | Radiation Detection Technology and Methods2019，3，3： | 1 |
| 19 | BAi Lin, et al, An Adaptive Evolution-Based Quantum-Inspired Evolutionary Algorithm for QoS Multicasting in IP/DWDM Networks 显示文摘 | XING Huanlai JI Yuefeng | 2009 | Computer Communications2009，32，6： | 1 |
| 20 | Evolutionary algo- rithm based power coverage optimization for visible light com- munications 显示文摘 | Ding Jupeng Huang Zhitong Ji Yuefeng | 2012 | Communications Letters IEEE2012，16，4： | 1 |
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