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Topological Landau–Zener nanophotonic circuits

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Advanced Photonics 2023年第3期5卷 127-134页

作者： Bing-Cong Xu Bi-Ye Xie Li-Hua Xu Ming Deng Weijin Chen Heng Wei fengliang dong Jian Wang Cheng-Wei Qiu Shuang Zhang Lin Chen Huazhong University of Science and Technology School of Optical and Electronic InformationWuhan National Laboratory for OptoelectronicsWuhanChina The Chinese University of Hong Kong School of Science and EngineeringShenzhenChina CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaNanofabrication LaboratoryCAS Key Laboratory for Nanosystems and Hierarchical FabricationCAS Key Laboratory for Nanophotonic Materials and DevicesBeijingChina National University of Singapore Department of Electrical and Computer EngineeringSingapore University of Chinese Academy of Sciences Center of Materials Science and Optoelectronics EngineeringBeijingChina The University of Hong Kong Department of PhysicsHong KongChina Peking University School of PhysicsState Key Laboratory for Mesoscopic PhysicsBeijingChina

Topological edge states(TESs),arising from topologically nontrivial phases,provide a powerful toolkit for the architecture design of photonic integrated circuits,since they are highly robust and strongly localized at the boundaries of topological *** is highly desirable to be able to control TES transport in photonic *** the coupling between the TESs in a finite-size optical lattice is capable of exchanging light energy between the boundaries of a topological lattice,hence facilitating the flexible control of TES ***,existing strategies have paid little attention to enhancing the coupling effects between the TESs through the finite-size ***,we establish a bridge linking the interaction between the TESs in a finite-size optical lattice using the Landau–Zener model so as to provide an alternative way to modulate/control the transport of topological *** experimentally demonstrate an edge-to-edge topological transport with high efficiency at telecommunication wavelengths in silicon waveguide *** results may power up various potential applications for integrated topological photonics.

关键词： topological edge states finite-size effect Landau-Zener model edge-to-edge topological transport nanophotonic integrated circuits

Broadband achromatic polarization insensitive metalens over 950 nm bandwidth in the visible and near-infrared

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Chinese Optics Letters 2022年第1期20卷 160-166页

作者：孙朋张梦蝶董凤良冯列峰褚卫国 Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology Department of Applied PhysicsSchool of ScienceTianjin UniversityTianjin 300072China Nanofabrication Laboratory CAS Key Laboratory for Nanophotonic Materials and DevicesCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Metalenses are expected to play an increasingly important role in miniaturized and integrated optical imaging components/***,devising broadband achromatic metalenses with high focusing efficiencies is still quite *** this work,we proposed an aperture-shared partition phase cooperative manipulation approach for designing a highefficiency broadband achromatic metalens composed of two concentric *** a proof-of-concept,an achromatic polarization-independent metalens is successfully designed for the visible and near-infrared range from450 nm to 1400 nm with the focusing efficiency over 70% for the wavelength range of 600 nm to 1400 *** approach reported here provides a possibility for designing a high-performance metalens,which has great potential applications in integrated optics.

关键词： achromatic metalens efficiency broadband polarization independence

cDNA cloning and recombinant expression of the general odorant binding protein Ⅱ from Spodoptera litura

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Science China(Life Sciences) 2009年第1期52卷 80-87页

作者： JIN fengliang,dong XiaoLin,XU XiaoXia & REN ShunXiang Engineering Research Center of Biological Control,College of Natural Resources and Environment,South China Agricultural University,Ministry of Education,Guangzhou 510642,China Engineering Research Center of Biological Control College of Natural Resources and Environment South China Agricultural University Ministry of Education Guangzhou China

A cDNA encoding the general odorant binding protein Ⅱ(GOBP Ⅱ) was isolated from the antennae of Spodoptera litura(SlGOBP Ⅱ,GenBank Accession ***086371) by homologous cloning and rapid amplification of cDNA ends(RACE).Sequencing and structural analyses revealed that the open reading frame(ORF) of SlGOBP Ⅱ was 489 bp,encoding 162 amino acids with a predicted MW of 18.2 kD and pI of *** Ⅱ shared typical structural features of odorant binding proteins with other insects,including the six conservative cysteine *** deduced amino acid sequence of SlGOPB Ⅱ shared significant identity with the GOBP Ⅱ from *** and ***-PCR and Northern blot analyses showed that SlGOBP Ⅱ was specifically expressed in the *** encoding SlGOBP Ⅱ was constructed into the pET-32a vector and the recombinant protein was highly expressed in Escherichia coli BL21(DE3) after induction with *** electrophoresis and Western blot analysis confirmed the molecular weight of the recombinant SIGOBPⅡ i.e,32 kD,which has a 6×His tag at the *** recombinant SlGOBP Ⅱ was purified by single-step Ni-NTA affinity chromatography and used to raise antiserum in *** showed that the titer of antiserum was 1:12800,while Western blot analysis showed that the recombinant SlGOBP Ⅱ was recognized as anti-SlGOBP Ⅱ antiserum.

关键词： Spodoptera litura antennae general odorant binding protein gene cloning prokaryotic expression

A novel MEMS-based focal plane array for infrared imaging

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Frontiers of Electrical and Electronic Engineering in China 2007年第1期2卷 83-87页

作者： LI Chaobo JIAO Binbin SHI Shali YE Tianchun CHEN Dapeng ZHANG Qingchuan GUO Zheying dong fengliang WU Xiaoping Micro-Processing and Nano-Technology Department Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of ChinaHefei 230027China

On the basis of opto-mechanical effect and micro electromechanical system(MEMS)technology,a novel substrate-free focal plane array(FPA)with the thermal isolated structure for uncooled infrared imaging is developed,even as alternate evaporated Au on SiN cantilever is used for thermal isolation.A human thermal image is obtained successfully by using the infrared imaging system composed of the FPA and optical detecting *** experiment results show that the realization of thermal isolation structure in substrate-free FPA increases the temperature rise of the deflecting leg effectively,whereas the noise equivalent temperature difference(NETD)is about 200 mK.

关键词： MEMS focal plane array(FPA) opto-mechanical low-pressure chemical vapor deposition(LPCVD) SiNx NETD

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低碳粉煤灰用于瓷砖胶对其性能的影响研究

新型建筑材料 2018年第8期45卷 38-40页

作者：董峰亮德高(广州)建材有限公司广东广州510235

以粉煤灰取代部分水泥,研究其对瓷砖胶性能的影响。试验结果表明,不同粉煤灰对瓷砖胶的粘结性能有影响,具有球形颗粒的粉煤灰可提高晾置时间内的拉伸粘结强度;但瓷砖胶的拉伸粘结强度随着粉煤灰掺量的增加呈下降趋势。粉煤灰掺量为20%... 详细信息

以粉煤灰取代部分水泥,研究其对瓷砖胶性能的影响。试验结果表明,不同粉煤灰对瓷砖胶的粘结性能有影响,具有球形颗粒的粉煤灰可提高晾置时间内的拉伸粘结强度;但瓷砖胶的拉伸粘结强度随着粉煤灰掺量的增加呈下降趋势。粉煤灰掺量为20%时瓷砖胶的性能能符合JC/T 547—2017《陶瓷砖胶粘剂》标准要求。

关键词：低碳粉煤灰瓷砖胶拉伸粘结强度

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建筑内墙腻子打磨分层性能测试方法研究

新型建筑材料 2022年第5期49卷 29-32页

作者：张永进王景楠董峰亮西卡德高(上海)建材有限公司上海200436

建筑内墙腻子的“打磨分层”性能对于腻子产品非常关键,该性能的准确评测一定程度影响着建筑腻子产品能否继续向高强高质的方向发展,但目前对建筑内墙腻子的“打磨分层”性能尚无统一的测试方法。尝试建立了一种评估“打磨分层”性能的... 详细信息

建筑内墙腻子的“打磨分层”性能对于腻子产品非常关键,该性能的准确评测一定程度影响着建筑腻子产品能否继续向高强高质的方向发展,但目前对建筑内墙腻子的“打磨分层”性能尚无统一的测试方法。尝试建立了一种评估“打磨分层”性能的测试方法,并在此基础上以一般型腻子和耐水型腻子两类常用的腻子作为测试样本进行了测试评估。通过腻子样品的测试结果验证了该方法与实际使用具有较好的关联性,可以作为一种评估腻子打磨分层性能的测试方法。

关键词：建筑内墙腻子打磨分层测试方法

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基于隔声涂料的楼地面隔声贴砖系统研究

新型建筑材料 2023年第7期50卷 114-117页

作者：毕彧傅娟董峰亮李文杰广州地铁设计研究院股份有限公司广东广州510010 华南理工大学建筑学院亚热带建筑与城市科学全国重点实验室广东广州510641 西卡(上海)管理有限公司上海200436 西卡德高(上海)建材有限公司上海201419

为实现地铁站后勤室楼地面撞击声隔声降噪,研究了不同类型乳液、不同隔声填料配比对隔声涂料隔声效果的影响。基于隔声涂料复合楼面找平贴砖一体化测试了隔声涂料、找平砂浆、石膏自流平、水泥自流平、轻质砂浆贴砖系统的隔声性能。结... 详细信息

为实现地铁站后勤室楼地面撞击声隔声降噪,研究了不同类型乳液、不同隔声填料配比对隔声涂料隔声效果的影响。基于隔声涂料复合楼面找平贴砖一体化测试了隔声涂料、找平砂浆、石膏自流平、水泥自流平、轻质砂浆贴砖系统的隔声性能。结果表明,在乳液固含量相同条件下,乳液的玻璃化转变温度(Tg)越低,隔声效果越好;4%蛭石和35%橡胶颗粒的加入可以有效提高隔声涂料的隔声效果;在砂浆中添加乳液可以有效提高系统的隔声效果;隔声涂料体系结合半干砂浆贴砖体系,使楼地面隔声效果达到67 dB,可应用于地铁站后勤休息室的隔声构造。

关键词：隔声涂料乳液固含量隔声贴砖系统隔声构造