检索结果-南通市图书馆

High-performance polarization management devices based on thin-film lithium niobate

Light(Science & Applications) 2022年第5期11卷 868-876页

作者： zhongjin lin Yanmei lin Hao Li Mengyue Xu Mingbo He Wei Ke Heyun Tan Ya Han Zhaohui Li Dawei Wang X.Steve Yao Songnian Fu Siyuan Yu Xinlun Cai State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-sen University510275 GuangzhouChina Department of Electrical and Computer Engineering The University of British ColumbiaVancouverBC V6T 1Z4Canada Photonics Information Innovation Center and Hebei Provincial Center for Optical Sensing Innovations College of Physics Science and TechnologyHebei University071002 BaodingChina Institute of Advanced Photonics Technology School of Information EngineeringGuangdong University of Technology510006 GuangzhouChina

High-speed polarization management is highly desirable for many applications,such as remote sensing,telecommunication,and medical ***,most of the approaches for polarization management rely on bulky optical components that are slow to respond,cumbersome to use,and sometimes with high drive ***,we overcome these limitations by harnessing photonic integrated circuits based on thin-film lithium niobate *** successfully realize a portfolio of thin-film lithium niobate devices for essential polarization management functionalities,including arbitrary polarization generation,fast polarization measurement,polarization scrambling,and automatic polarization *** present devices feature ultra-fast control speeds,low drive voltages,low optical losses and compact *** these devices,we achieve high fidelity polarization generation with a polarization extinction ratio up to 41.9 dB and fast polarization scrambling with a scrambling rate up to 65 Mrad s−1,both of which are best results in integrated *** also demonstrate the endless polarization state tracking operation in our *** demonstrated devices unlock a drastically new level of performance and scales in polarization management devices,leading to a paradigm shift in polarization management.

关键词： polarization lithium film

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chip-scale full-Stokes spectropolarimeter in silicon photonic circuits

引用

Photonics Research 2020年第6期8卷 864-874页

作者： zhongjin lin TIGRAN DADALYAN SIMON BELANGER-DE VILLERS TIGRAN GALSTIAN WEI SHI Department of Electrical and Computer Engineering Centre for OpticsPhotonics and Laser(COPL)Universite LavalQuebecQuebec G1V 0A6Canada

Wavelength dependent polarization state of light carries crucial information about light-matter ***,its measurement is limited to bulky,high energy-consuming devices,which prohibits many modern,portable ***,we propose and demonstrate a chip-scale spectropolarimeter implemented using a complementary metal oxide semiconductor compatible silicon photonics *** compact Vernier microresonator spectrometers are monolithically integrated with a broadband polarimeter consisting of a 2D nanophotonic antenna and a polarimetric circuit to achieve full-Stokes spectropolarimetric *** proposed device offers a solid-state spectropolarimetry solution with a small footprint of 1 mm × 0.6 mm and low power consumption of 360 ***-Stokes spectral detection across a broad spectral range of 50 nm with a resolution of 1 nm is demonstrated in characterizing a material possessing structural *** proposed device may enable a broader application of spectropolarimetry in the fields ranging from biomedical diagnostics and chemical analysis to observational astronomy.

关键词： antenna polarization resonator

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Digitally tunable optical delay line based on thinfilm lithium niobate featuring high switching speed and low optical loss

引用

Photonics Research 2022年第11期10卷 2575-2583页

作者： WEI KE YANMEI lin MINGBO HE MENGYUE XU JIAXIANG ZHANG zhongjin lin SIYUAN YU XINLUN CAI State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510275China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200092China Department of Electrical and Computer Engineering The University of British ColumbiaVancouverBritish Columbia V6T 1Z4Canada

A tunable optical delay line(ODL) featuring high switching speed and low optical loss is highly desirable in many fields. Here, based on the thin-film lithium niobate platform, we demonstrate a digitally tunable on-chip ODL that includes five Mach–Zehnder interferometer optical switches, four flip-chip photodetectors, and four delayline waveguides. The proposed optical switches can achieve a switching speed of 13 ns and an extinction ratio of34.9 dB. Using a modified Euler-bend-based spiral structure, the proposed delay-line waveguide can simultaneously achieve a small footprint and low optical propagation loss. The proposed ODL can provide a maximum delay time of 150 ps with a resolution of 10 ps and feature a maximum insertion loss of 3.4 dB.

关键词： tunable optical interferometer

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

HADRONIC WIDTH OF S-WAVE HEAVY QUARKONIUM STATE WITH MASSIVE GLUONS

引用

Chinese Science Bulletin 1988年第7期33卷 568-570页

作者：林仲金 Department of Physics Xiamen University

In recent years, some papers discussed the problems concerning massive gluons. Ref. [2] suggests that gluons acquire masses in order to improve QCD predictions at low energies. Ref. [3] assumes that the gluon mass is ... 详细信息

关键词： breaking gauge concerning gained symmetry WAVE acquire colour spontaneous elsewhere

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

PP碰撞中大P_T实光子的产生

引用

厦门大学学报(自然科学版) 1984年第1期 47-50页

作者：林仲金厦门大学物理学系

P+P→r+X反应中,如果在α_s阶QCD计算的结果上再考虑价夸克——价夸克子过程中双夸克态的贡献,利用核子深度非弹实验得到的部分子分布函数,能使计算结果更符合实验数据。

关键词：实光子深度非弹价夸克 P_T 中大 PP

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

基于光电子集成技术的光学相干层析成像系统(特邀)

引用

激光与光电子学进展 2024年第19期61卷 206-221页

作者：王一飞陈力锋林忠劲蔡鑫伦中山大学电子与信息工程学院(微电子学院)光电材料与技术国家重点实验室广东广州510006 铌奥光电科技有限公司江苏南京210036

光学相干层析成像(OCT)作为一种无创的高分辨率三维成像技术,在医学、薄膜材料制备工艺等领域得到了广泛的应用,尤其是在医学中眼科疾病的诊断方面,OCT被认为是视网膜横截面成像的黄金标准。然而,由于传统OCT系统包含许多庞大的分立式... 详细信息

光学相干层析成像(OCT)作为一种无创的高分辨率三维成像技术,在医学、薄膜材料制备工艺等领域得到了广泛的应用,尤其是在医学中眼科疾病的诊断方面,OCT被认为是视网膜横截面成像的黄金标准。然而,由于传统OCT系统包含许多庞大的分立式光学组件,限制了其应用的发展。最近,通过引入光电子集成(PIC)技术,将传统庞大的分立式OCT系统组件集成于微小的光电芯片之中,OCT系统有望进入一个尺寸更小、成本更低且系统稳定性更佳的新阶段。本综述围绕基于PIC技术的OCT系统,讨论了OCT系统的工作原理和关键性能参数,包括分辨率、成像速度、成像深度和信噪比,并阐述了基于PIC的OCT系统的设计方法。此外,本综述还归纳了近年来基于PIC的OCT系统研究进展,讨论了不同材料平台在OCT系统应用中的优劣。最后,本综述分析了当下基于PIC的OCT系统研究可能面临的挑战,并对后续发展方向与潜在研究角度进行了展望。

关键词：光电子集成技术光学相干层析成像分辨率成像速度材料平台绝缘体上铌酸锂

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

1^(++)→Gq^- DECAY IN THE BROKEN QCD

引用

Chinese Science Bulletin 1985年第1期30卷 42-46页

作者：林仲金黄朝商赵光达 Department of Physics Xiamen University Institute of Theoretical Physics Academia Sinica Beijing Department of Physics Peking University

Problems concerning massive gluons have been investigated in recent years. In Ref. [2] it is assumed that gluons acquire masses through spontaneous breaking of the local color gauge symmetry while quasiconfinement of gluons and quarks are still maintained. This may be called a broken QCD scheme. In order to distinguish the broken QCD from conventional QCD experimentally, the decay rate and branching ratio for the process 1++→2G which is not allowed in conventional QCD were studied in Ref. (2)Instead of using the calculated decay rate of 1++→Gqq in conven-

关键词： branching decay broken symmetry distinguish assumed Gq breaking spontaneous quark

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

高能e-ē碰撞中双光子湮没贡献的几点注释

引用

厦门大学学报(自然科学版) 1981年第2期 181-188页

作者：彭宏安林仲金北京大学物理系厦门大学物理系

用Regge极点和夸克部分子模型,分别估算了高能e-e碰撞双光子湮没过程中的总截面σee→（eeX）,其数值很接近,ECM>3GeV,则超过单光子湮没截面σee→X。另外,当ee极高能量(例如ECM=200GeV)时,双光子碰撞将出现强作用大横动量现象。计算了P... 详细信息

用Regge极点和夸克部分子模型,分别估算了高能e-e碰撞双光子湮没过程中的总截面σee→（eeX）,其数值很接近,ECM>3GeV,则超过单光子湮没截面σee→X。另外,当ee极高能量(例如ECM=200GeV)时,双光子碰撞将出现强作用大横动量现象。计算了PT>10GeV的积分截面,发现它几乎为σee→X的3倍,表明极高能量时,实验可测的主要是双光子湮没的贡献。

关键词：双光子横动量部分子模型结构模型夸克层子假设粒子强子实光子注释注解

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Synthesis of Acrylic Acid/Kaoline Powder Superabsorbent Composite by Inverse-suspending Polymerization

引用

Chemical Research in Chinese Universities 2004年第3期20卷 362-365页

作者： zhongjin-feng XUEYi-ming WUJi-huai linJian-ming WEIYue-lin InstituteofMaterialsPhysicalChemistry HuaqiaoUniversityQuanzhou362011P.R.China

An acrylic acid/kaoline powder superabsorbent composite with a water absorbency of the superabsorbent composite about 1/800 was synthesized by inverse\|suspending polymerization reaction between acrylic acid monomer and kaoline ultrafine powder. The influence of the dispersant agent on the configuration of the products in the inverse suspension polymerization is investigated. The influences of the kaoline powder,cross\|linker,initiator,neutralization degree and the volume ratio of oil to water phase on the water absorbency of the superabsorbent composites are discussed in the paper.

关键词： Superabsorbent composite Inverse-suspending polymerization Acrylic acid Kaoline powder

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nonlinear analysis on the coupling process of electromagnetic vibrator and earth

引用

Science China Earth Sciences 2005年第8期48卷 1175-1182页

作者： CHEN Zubin1,2, TENG Jiwen2, lin Jun1, ZHANG linhang1 & JIANG zhongjin1 1. Institute of Intelligent Instrument & Measurement Control Technology, Jilin University, Changchun 130026, China 2. Institute of Geology & Geophysics, Chinese Academy of Sciences, Beijing 100029, China Institute of Intelligent Instrument & Measurement Control Technology Jilin University Changchun China Institute of Geology & Geophysics Chinese Academy of Sciences Beijing China

The linear model based on the hydraulic pressure vibrator has been no longer adaptable to the electromagnetic vibrator. In order to realize the effective transmission of the limited energy from the vibrator to the ground, it is important to study the coupling model of the electromagnetic vibrator and the earth. In this paper, a nonlinear restore term was introduced to the coupling model because of the existence of a large amount of harmonics in the vibrator baseplate. The nonlinear vibration analysis was applied to the model by the multiscale method. In the course of energy transmission from the vibrator to the ground, ultraharmonic resonance was used to explain the generation of harmonics. An improved scheme was advanced to select the cross correlation reference signal in the vibrator seismic exploration. Good application results were obtained in field experiments.

关键词： vibrator, coupling model, electromagnetic, nonlinear vibration.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：