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A triple-band miniaturized end-fire antenna based on odd-mode spoof surface plasmonic polariton waveguide resonator

optoelectronics Letters 2025年

作者： BAI Yukun MAO Mengqun Tianjin Key Laboratory of Film Electronic and Communication Devices， Engineering Research Center of Optoelectronic Devices and Communication Technology， Ministry of Education， School of Integrated Circuit Science and Engineering， Tianjin University of Technology

A triple-band miniaturized end-fire antenna based on the odd modes of spoof surface plasmonic polariton (SSPP) waveguide resonator is proposed in this paper. To meet the ever increasing demand for more communication channels and less antenna sizes， multi-band antennas are currently under intensive investigation. By a novel feeding method， three odd modes are excited on an SSPP waveguide resonator， which performs as an end-fire antenna operating at three bands， 7.15-7.26GHz， 11.6-12.2GHz and 13.5-13.64GHz. It exhibits reasonably high and stable maximum gains of 5.26， 7.97 and 10.1dBi and maximum efficiencies of 64%， 92% and 98% at the three bands， respectively. Moreover， in the second band the main beam angle shows a frequency dependence with a total scanning angle of 19°. The miniaturized triple-band antenna has a great potential to be applied in wireless communication systems， satellite communication and radar systems.

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Exploring negative ion behaviors and their influence on properties of DC magnetron sputtered ITO films under varied power and pressure conditions

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Chinese Physics B 2024年第10期33卷 442-449页

作者： Maoyang Li Chaochao Mo Peiyu Ji Xiaoman Zhang Jiali Chen Lanjian Zhuge Xuemei Wu Haiyun Tan Tianyuan Huang School of Physical Science and Technology Soochow UniversitySuzhou 215000China Suzhou Maxwell Technologies Co. Ltd.Suzhou 215000China Jiangsu Key Laboratory of Frontier Material Physics and Devices Suzhou 215000China School of Optoelectronic Science and Engineering Soochow UniversitySuzhou 215000China Analysis and Testing Center Soochow UniversitySuzhou 215000China School of Optical and Electronic Information Suzhou City University&Suzhou Key Laboratory of BiophotonicsSuzhou 215104China

We deposited indium-tin-oxide(ITO)films on silicon and quartz substrates by magnetron sputtering technology in pure *** electrostatic quadrupole plasma diagnostic technology,we investigate the effects of discharge power and discharge pressure on the ion flux and energy distribution function of incidence on the substrate surface,with special attention to the production of high-energy negative oxygen ions,and elucidate the mechanism behind its *** the same time,the structure and properties of ITO films are systematically characterized to understand the potential effects of high energy oxygen ions on the growth of ITO *** with the kinetic property analysis of sputtering damage mechanism of transparent conductive oxide(TCO)thin films,this study provides valuable physical understanding of optimization of TCO thin film deposition process.

关键词： magnetron sputtering ion energy ITO thin film high energy oxygen anion

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Numerical Investigation of the Spectral Transmission Characteristics of T-shaped Metal Nanohole Array 7

Numerical Investigation of the Spectral Transmission Charact...

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7th Global Intelligent Industry Conference, GIIC 2024

作者： Li, Hang Zhang, Weiguo Xia, Liangping Dang, Suihu Zhang, Man Du, Chunlei Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing400714 China Key Laboratory of Micro Nano Optoelectronic Devices and Intelligent Perception Systems Yangtze Normal University Chongqing408100 China

ISBN: (纸本)9781510682986

Surface plasmon polaritons can manipulate and transmit light fields at the nanoscale, offering a wide range of applications in areas such as optoelectronic detection, optical filtering, novel light sources, and biosensing. This study investigated the transmission enhancement characteristics of conventional nanohole arrays through finite-difference time-domain (FDTD) simulations. Additionally, T-shaped metal nanoholes are designed based on the distinct spectral transmission properties of rectangular holes under varying polarized light conditions. Research has demonstrated that compared with their rectangular counterparts, T-shaped metal nanoholes exhibit polarization selectivity and sharper transmission spectra. Furthermore, this study investigated the impact of different components within the structure of T-shaped metal nanoholes on light field modulation by analyzing the electric field distribution. Finally, the influence of various parameters, such as the period, film thickness, and hole size, on the transmission spectrum of T-shaped metal nanoholes is investigated. © 2024 SPIE.

关键词： Light transmission

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Helicity inversion of the scattered twisted light field using pilot-assisted laser light and Stokes correlation

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Optics and Lasers in Engineering 2025年 193卷

作者： Sarkar, Tushar Chandra, Sourav Cai, Jiapeng Peng, Xiang He, Wenqi Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Uttar Pradesh Varanasi221005 India Shenzhen Key Laboratory of Intelligent Optical Measurement and Detection Shenzhen University Shenzhen518060 China

We propose and experimentally demonstrate a new method to directly invert the helicity of the twisted beam propagating through a scattering media. This is implemented by leveraging a pilot-assisted laser light and a special finding regarding the higher-order Stokes correlation. Here, the pilot-assisted strategy refers to coaxial light propagation through a scattering media in which one of the orthogonal polarization bases is encoded with the twisted beam while another polarization basis is free from it. Such a strategy eliminates the path-induced randomness in the higher-order Stokes correlation owing to the identical randomness presented in both orthogonal polarization bases, preserving the incident twisted beam. The recovery and inversion of the helicity are accomplished by measuring the higher-order Stokes correlation of the scattered light. A detailed theoretical framework is developed and supported by numerical simulation followed by experimental tests. © 2025 Elsevier Ltd

关键词： Angular momentum

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2-switched Er^(3+)/Dy^(3+)codoped ZrF_(4)fiber laser:continuously tunable pulse generation from 3.06 to 3.62μm

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Chinese Optics Letters 2023年第4期21卷 49-52页

作者：王永志罗鸿禹王彪李剑峰刘永 State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China

In this Letter,we report on widely tunable pulse generation from a red-diode-clad-pumped mid-infrared[mid-IR)Er^(3+)/Dy^(3+)codoped ZrF_(4)fiber laser,for the first time,to the best of our *** a Fe^(2+):ZnSe crystal,continuously tunable Qswitched pulses across the range of 3.06–3.62μm have been attained,which not only represents the widest range[in wavelength domain)from a pulsed rare-earth-doped fiber laser at any wavelength,but also almost entirely covers the strong absorption band of C-H bonds in the mid-IR,providing a potential way for gas detection and polymer *** addition,the commercial InAs quantum-well-based saturable absorbers[SAs)have been employed instead,and the obtained longest Q-switching wavelength of 3.39μm is slightly shorter than 3.444μm determined by its nominal direct bandgap of 0.36 eV.

关键词： Q switching continuous tunability Fe^(2+):ZnSe InAs ZrF_(4)fiber

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High performance electro-optic modulator based on thin-film lithium niobate

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optoelectronics Letters 2022年第10期18卷 583-587页

作者： LIU Leshu LIU Ning ZHANG Jianfa ZHU Zhihong LIU Ken College of Advanced Interdisciplinary Studies&Hunan Provincial Key Laboratory of Novel Nano-Optoelectronic Information Materials and Devices National University of Defense TechnologyChangsha410073China

Electro-optic(EO) modulator plays a very critical role in the optical communication systems. Here, we report a stimulated thin-film lithium niobate(LN) modulator with a half-wave voltage-length product of 1.8 V·cm, which can successfully achieve modulation and demodulation of a 1 GHz sinusoidal signal with an amplitude of 5 V in experiment. The optical loss caused by metal electrodes is reduced by optimizing the waveguide structure and depositing silica onto the waveguide, and group-velocity matching and characteristic impedance matching are achieved by optimizing the buffer silica layer and the electrode structure for larger bandwidth, which simultaneously improves the modulation efficiency and bandwidth performance. Our work demonstrated here paves a foundation for integrated photonics.

关键词： modulator waveguide lithium

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基于蒽和三苯胺基D-π-A结构的蓝色荧光材料在有机发光和紫外探测集成器件中的应用

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Science China Materials 2024年第1期67卷 197-204页

作者：董文健白雲水王雅婷赵松许慧侠苗艳勤罗巧王华于军胜 Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China(UESTC)Chengdu 610054China

有机集成化光电子器件兼具了小型化和多功能性的优势,如集成了有机发光和紫外探测的有机发光紫外探测器件(OLED-UVOPDs).这种器件中的有机光电材料的设计仍然面临重大的挑战.在本文中,以蒽为π桥,腈基苯为受体,三苯胺(TPA)和二甲基三苯... 详细信息

有机集成化光电子器件兼具了小型化和多功能性的优势,如集成了有机发光和紫外探测的有机发光紫外探测器件(OLED-UVOPDs).这种器件中的有机光电材料的设计仍然面临重大的挑战.在本文中,以蒽为π桥,腈基苯为受体,三苯胺(TPA)和二甲基三苯胺(2mTPA)分别为给体,设计并合成了两种可用于OLED-UVOPD器件的蓝色发光分子,TPA-AN和2mTPA-AN.它们的发光峰分别位于474和488 nm处,荧光量子产率为51.1%和46.6%.通过单载流子器件计算得到其电子迁移率分别为3.96×10^(-5)和6.63×10^(-7)cm^(2)V^(-1)s^(-1).基于TPA-AN的OLED器件表现出强的蓝光发射,最大亮度为43,110 cd m^(-2),最大外量子效率(EQE)为8.1%.它们在OLED-UVOPD集成器件中表现出优异的性能,紫外探测率分别为7.18×10^(11)和2.85×10^(12)Jones,最大EQE分别为8.7%和5.9%.

关键词：紫外探测集成器件有机光电材料电子迁移率光电子器件最大亮度蓝色发光 OLED

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Julolidine functionalized benzimidazoline-doped fullerene derivatives for efficient and stable perovskite solar cells

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Interdisciplinary Materials 2024年第3期3卷 369-379页

作者： Yanqing Zhu Chenglong Li JiaHui Chen Yuxi Zhang Jianfeng Lu Min Hu Wangnan Li Fuzhi Huang Yi-Bing Cheng Hyesung Park Shengqiang Xiao State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhanChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina School of Electronic and Electrical Engineering Hubei Province Engineering Research Centre for Intelligent Micro-Nano Medical Equipment and Key TechnologiesWuhan Textile UniversityWuhanChina Hubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices Hubei University of Arts and ScienceXiangyangHubeiChina KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoulRepublic of Korea Department of Integrative Energy Engineering Korea UniversitySeoulRepublic of Korea Hubei Key Laboratory of Fuel Cell WuhanChina

Fullerene derivatives are highly attractive materials in solar cells,organic thermoelectrics,and other ***,the intrinsic low electron mobility and electrical conductivity restrict their potential device performance,such as perovskite solar cells(PSCs).Herein,we successfully enhanced the electric properties and morphology of phenyl-C61-butyric acid methyl ester(PCBM)by n-doping it with a benzimidazoline derivative,9-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)-julolidine(JLBI-H)via a solution *** found the n-doping can not only improve the conductivity and optimize the band alignment but also enable the PCBM to have a constantly strong charge extraction ability in a wide temperature from 173 to 373 K,which guarantees a stable photovoltaic performance of the corresponding PSCs under a wide range of operating *** the JLBI-H-doped PCBM,we improved the efficiency from 17.9%to 19.8%,along with enhanced stability of the nonencapsulated devices following the aging protocol of ISOS-D-1.

关键词： charge extraction electron mobility n-doping PSCs wide operation temperature

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Highly efficient perovskite solar cells by building 2D/3D perovskite heterojuction in situ for interfacial passivation and energy level adjustment

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Science China Chemistry 2023年第2期66卷 449-458页

作者： Yaoyao Huang Zhangyu Yuan Jia Yang Shungao Yin Aihui Liang Gang Xie Chuizheng Feng Zhisheng Zhou Qifan Xue Yang Pan Fei Huang Yiwang Chen National Engineering Research Center for Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education Jiangxi Normal UniversityNanchang330022China College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry(IPEC) Nanchang UniversityNanchang330031China State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSchool of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640China

Passivating the interfacial defects and reducing the interfacial non-radiative recombination losses are the keys to improving the photovoltaic performance of three-dimensional(3D)perovskite solar cells(PVSCs).Stacking two dimensional(2D)perovskites on 3D perovskite is a promising method for interfacial treatment that improves the stability and efficiency of ***,we developed conjugated fluorinated benzimidazolium cation(FBIm+)which can be inserted between 3D perovskite and holetransporting layer(HTL)to form 2D perovskite in *** 2D single crystal structures of(FBIm)_(2)Pb I4and(FBIm)_(2)Pb Br_(4)were achieved and confirmed by single-crystal X-ray diffraction(XRD),while few single crystals of 2D perovskite based on imidazolium or benzimidazolium anchors have been *** 2D perovskite can passivate the interfacial defects,induce better crystallinity and orientation,conduct lower trap density and extend carrier ***,the energy level arrangement can be regulated by changing the counterion from iodide to bromide,which can efficiently improve the hole extraction and device *** a consequence,the best efficiency of 23.00%for FBIm Br-incorporated devices was achieved,while only 20.72%for the control ***,the PVSCs modified by FBIm Br displayed excellent environmental stability due to the constructed hydrophobic 2D perovskite layer which can effectively block moisture *** work develops a new path to design novel conjugated organic passivants to form 2D/3D perovskite structures.

关键词： organic-inorganic halide perovskites solar cells passivation engineering 2D/3D perovskites

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Coupling of piezocatalysis and photocatalysis for efficient degradation of methylene blue by Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3) nanotubes

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Journal of Advanced Ceramics 2022年第7期11卷 1069-1081页

作者： Angom Devadatta MANI Jie LI Ziquan WANG Jiale ZHOU Huaicheng XIANG Jinlai ZHAO Libo DENG Haitao YANG Lei YAO Shenzhen Key Laboratory of Special Functional Materials Shenzhen Engineering Laboratory for Advanced Technology of CeramicsGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen 518071China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China cCollege of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518071China

Photocatalytic degradation of organic pollutants is of great significance for wastewater remediation but is still hindered by the poor catalytic efficiency of the ***,we report a strategy to simultaneously introduce piezocatalysis and to enhance the intrinsic photocatalysis in a single catalyst,which improved the performance for catalytic degradation of methylene blue(MB)***,piezoelectric BiFeO_(3)(BFO)nanotube doped with different contents of Gd and La(Bi_(0.9)(GdxLa_(1−x))0.1FeO_(3))were produced by *** doping led to a higher concentration of surface oxygen vacancy(OV)in Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3),which effectively increased the piezoelectric field due to the deformation of BFO,and suppressed the recombination of photon-generated electron–hole *** Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3)nanotube showed excellent catalytic performance under simultaneous light irradiation and ultrasonic excitation,giving an extraordinary 95%degradation of MB within 90 *** findings suggest that the piezoelectric effect combined with defect engineering can enhance the catalytic performance of Bi_(0.9)Gd_(0.07)La_(0.03)FeO_(3)*** could potentially be extended to other catalytic systems for high-performance pollutant treatment.

关键词： photocatalysis piezocatalysis sonophotocatalysis oxygen vacancy(OV)

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