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High-intensity spatial-mode steerable frequency up-converter toward on-chip integration

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Opto-Electronic Science 2024年第4期3卷 12-20页

作者： haizhou huang Huaixi Chen Huagang Liu Zhi Zhang Xinkai Feng Jiaying Chen Hongchun Wu Jing Deng Wanguo Liang Wenxiong Lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of ScienceFuzhou 350002China Key Laboratory of Opto-Electronic Science and Technology for Medicine of Ministry of Education Fujian Provincial Key Laboratory of Photonics TechnologyCollege of Photonic and Electronic EngineeringFujian Normal UniversityFuzhou 350117China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China College of Digital Economy Fujian Agriculture and Forestry UniversityFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China.

Integrated photonic devices are essential for on-chip optical communication,optical-electronic systems,and quantum information *** develop a high-fidelity interface between photonics in various frequency domains without disturbing their quantum properties,nonlinear frequency conversion,typically steered with the quadratic(χ2)process,should be ***,another degree of freedom in steering the spatial modes during theχ2 process,with unprecedent mode intensity is proposed here by modulating the lithium niobate(LN)waveguide-based inter-mode quasi-phasematching conditions with both temperature and wavelength *** high incident light intensities(25 and 27.8 dBm for the pump and the signal lights,respectively),mode conversion at the sum-frequency wavelength with sufficient high output power(−7–8 dBm)among the TM01,TM10,and TM00 modes is realized automatically with characterized broad temperature(ΔT≥8°C)and wavelength windows(Δλ≥1 nm),avoiding the previous efforts in carefully preparing the signal or pump *** results prove that high-intensity spatial modes can be prepared at arbitrary transparent wavelength of theχ2 media toward on-chip integration,which facilitates the development of chip-based communication and quantum information systems because spatial correlations can be applied to generate hyperentangled states and provide additional robustness in quantum error correction with the extended Hilbert space.

关键词： integrated photonics LN waveguide sum-frequency generation spatial-mode steering on-chip integration

Practical N-alkylation via homogeneous iridium-catalyzed direct reductive amination

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Science China Chemistry 2023年第2期66卷 518-525页

作者： Jing Wang Wenji Wang Xiongyu Yang Jingwen Liu haizhou huang Mingxin Chang College of Chemistry&Pharmacy Northwest A&F UniversityYangling12100China College of Plant Protection Shaanxi Research Center of Biopesticide Engineering&TechnologyNorthwest A&F UniversityYangling712100China

Direct reductive amination(DRA)is one of the most efficient methods for amine *** we report a practical homogeneous DRA procedure utilizing iridium *** simple,readily available and inexpensive PPh_(3)and alike ligands along with iridium at a low loading,aldehydes and ketones reductively coupled with primary and secondary amines to efficiently form structurally and functionally diverse amine products,including a set of drugs and compounds from late-stage *** reaction conditions were exceptionally mild and additive-free,in which oxygen,moisture,polar protic groups and multiple other functional groups were *** targeted products,this methodology is especially versatile for offering multiple possible synthetic *** 10 gram-scale synthesis further demonstrated the potential and promise of this procedure in practical amine *** studies reveal an“outer-sphere”H-addition pathway,in whichπ-πinteractions and H-bonding play important roles.

关键词： homogeneous catalysis hydrogenation Iridium catalysis N-alkylation reductive amination

Passively Q-switched Tm/Ho composite laser

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Opto-Electronic Advances 2020年第4期3卷 14-19页

作者： haizhou huang Jinhui Li Jing Deng Yan Ge Huagang Liu Jianhong huang Wen Weng Wenxiong Lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3117576Singapore.

We explored Q-switching mechanism for the newly proposed Tm/Ho composite laser via developing a hybrid resonator for separating the intra-cavity Tm laser modulated by the saturable absorber(SA).With a Cr:ZnSe SA,successful passively Q-switching process with the maximum average output power of 474 mW and the shortest pulse width of 145 ns were obtained at the pulse repetition frequency of 7.14 kHz,where dual wavelength oscillation in both 2090 nm and 2097 nm was *** work provides an effective way for a direct laser diode(LD)pumped Q-switched Ho laser,which is compact and ***,the current SA could be replaced by the 2D materials with broadband saturable absorption such as topological insulators or transition-metal dichalcogenides for seeking novel PQS lasers.

关键词： Ho laser Tm laser Tm/Ho composite passively Q-switched Cr:ZnSe

乌江下游梯级水库浮游植物群落结构特征与多样性分析

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水产学杂志 2024年第1期37卷 75-80页

作者：郑鑫胡菊香黄海洲吕克强李嗣新重庆大唐国际武隆水电开发有限公司重庆404100 水利部中国科学院水工程生态研究所水利部水工程生态效应与生态修复重点实验室湖北武汉430079

2021年9月,结合水文情势、生物分布特征及生境等实际情况,设置8个监测断面,调查乌江下游彭水和银盘2个梯级水电站影响区域内的浮游植物落结构特征及多样性,探讨乌江下游梯级电站对浮游植物群落结构的影响。本次调查采集到浮游植物6门37... 详细信息

2021年9月,结合水文情势、生物分布特征及生境等实际情况,设置8个监测断面,调查乌江下游彭水和银盘2个梯级水电站影响区域内的浮游植物落结构特征及多样性,探讨乌江下游梯级电站对浮游植物群落结构的影响。本次调查采集到浮游植物6门37属51种,硅藻门占浮游植物总种类数的60.8%,浮游植物平均密度为4.1×106cells/L,平均生物量为0.792 mg/L。Shannon-Wiener多样性指数范围为1.63~2.84,Margalef丰富度指数范围为3.08~5.41。乌江下游银盘和彭水电站影响区域主要以硅藻门为主,浮游植物群落空间分布差异较大,库尾及以上急流区域的浮游植物多样性指数比库区缓流段高。Shannon-Wiener多样性指数和Margalef丰富度指数分析表明,蓄水后适应流水环境的浮游植物种类数变少。与蓄水前对比发现,蓄水后浮游植物种类数和生物多样性均有所降低,梯级电站建设在一定程度上降低了库区浮游植物的多样性。

关键词：浮游植物群落结构多样性水库乌江

Electrode materials for brain-machine interface:A review

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InfoMat 2021年第11期3卷 1174-1194页

作者： Nan Wu Shu Wan Shi Su haizhou huang Guangbin Dou Litao Sun SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of EducationCollaborative Innovation Center for Micro/Nano FabricationDevice and SystemSoutheast UniversityNanjingChina Key Laboratory of Optoelectronic Technology and Systems Ministry of EducationKey Disciplines Laboratory of Novel Micro-Nano Devices and System TechnologySchool of Optoelectronics EngineeringChongqing UniversityChongqingChina Center for Advanced Materials and Manufacture Joint Research Institute of Southeast University and Monash UniversitySuzhouChina Center for Advanced Carbon Materials Southeast University and Jiangnan Graphene Research InstituteChangzhouChina

Brain-machine interface(BMI)is a device that translates neuronal information into commands,which is capable of controlling external software or hardware,such as a computer or robotic *** consequence,the electrodes with desirable electrical and mechanical properties for direct interacting between neural tissues and machines serves as the crucial and critical part of BMI ***,the development of material science provides many advanced electrodes for neural stimulating and ***,the widespread applications of nanotechnologies have innovatively introduced biocompatible electrode that can have similar characteristics with neural *** paper reviews the existing problems and discusses the latest development of electrode materials for BMI,including conducting polymers,silicon,carbon nanowires,graphene,and hybrid organic-inorganic *** addition,we will inspect at the technical and scientific challenges in the development of neural electrode for a broad application of BMI with focus on the biocompatibility,mechanical mismatch,and electrical performance of electrode materials.

关键词： biocompatibility brain-machine interface electrode materials implantable device

Validation of spectrum method for improving efficiency of continuous-wave ＆ Q-switched Tm-doped yttrium aluminum garnet laser

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Science China(Physics,Mechanics & Astronomy) 2018年第3期61卷 77-80页

作者： haizhou huang Pan Gao HuaGang Liu Jian-Hong huang Juan Wang KaiMing Ruan Wen Weng Hui Zheng ZiXiong Lin ShuTao Dai Jing Deng WenXiong Lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China University of Chinese Academy of Sciences Beijing 100049 China

Tm3＋-doped 2-μm lasers benefit many applications such as atmospheric sensing, medical treatment, and spec- troscopy [1-3]. Therefore, in the past two decades, both continuous-wave （CW） and pulse operations have be... 详细信息

关键词：钇铝石榴石激光波浪谱方法切换 Tm 医疗纤维

钌催化的直接不对称还原胺化合成手性二芳基甲胺与大位阻胺

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有机化学 2020年第6期40卷 1802-1803页

作者：黄海洲常明欣西北农林科技大学化学与药学院陕西杨凌712100

手性二芳基甲胺和大位阻胺是天然产物、药物和生物活性化合物的重要砌块^[1],也是手性配体的合成和催化剂设计中的关键要素^[2].其主要合成方法包括外消旋体的拆分,芳基金属或芳基硼试剂对亚胺的不对称加成^[3]和亚胺的不对称氢化^[4]等.

关键词：不对称加成不对称氢化外消旋体手性配体二芳基生物活性化合物天然产物催化剂设计

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全球通货膨胀及其对中国的影响

国际经济评论 2006年第1期 19-20页

作者：黄海洲

一、全球的通胀风险几年来全球经济的持续增长已经带来了一些通胀的压力，尤其是在美国。从80年代开始通胀长期减低的趋势现在基本上已经终止了，OECD国家的CPI在75年之后基本上达到一个高点．75年之前有另外一个高点，之后，除了1987... 详细信息

一、全球的通胀风险几年来全球经济的持续增长已经带来了一些通胀的压力，尤其是在美国。从80年代开始通胀长期减低的趋势现在基本上已经终止了，OECD国家的CPI在75年之后基本上达到一个高点．75年之前有另外一个高点，之后，除了1987年少许波动以外，大的趋势基本上是一路下跌。但到2005已经不再是持平，而是回升上行。

关键词：全球经济通货膨胀中国 OECD国家持续增长 80年代通胀 CPI

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关于中美经济、金融互动关系的几点建议

国际经济评论 2007年第4期 23-24页

作者：黄海洲清华大学

讨论中美关系，或者中国和其他国家的关系，有必要先认识我们现在所处的时代。这一时代的最大特征是全球化和几个大的发展中国家的迅速崛起。全球化有几个重要问题要想清楚，包括中美问题怎样、中国和欧洲的关系怎样、中国和非洲的关系... 详细信息

讨论中美关系，或者中国和其他国家的关系，有必要先认识我们现在所处的时代。这一时代的最大特征是全球化和几个大的发展中国家的迅速崛起。全球化有几个重要问题要想清楚，包括中美问题怎样、中国和欧洲的关系怎样、中国和非洲的关系怎样。

关键词：中美关系发展中国家经济金融全球化