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Communications in Theoretical Physics 2008年第10期50卷 803-808页

作者： dong zhong-zhou CHEN Yong WANG Ling Shanghai Key Laboratory of Trustworthy Computing East China Normal University Shanghai 200062 China Key Laboratory of Mathematics Mechanization Chinese Academy of Sciences Beijing 100080 China Department of Mathematics and Computer Science Chizhou University Chizhou 247000 Anhui Province China

Painleve property of the （2＋1）-dimensional multi-component Broer-Kaup （BK） system is considered by using the standard Weiss Kruskal approaches. Applying the Clarkson and Kruskal （CK） direct method to the （2＋1）- dimensional multi-component BK system, some types of similarity reductions are obtained. By solving the reductions, one can get the solutions of the （2＋1）-dimensional multi-component BK system.

关键词： multi-component Broer Kaup system similarity reduction direct method

Study of （2＋1）-Dimensional Higher-Order Broer-Kaup System

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Communications in Theoretical Physics 2007年第3期47卷 403-408页

作者： WANG Ling LIU Xi-Qiang dong zhong-zhou School of Mathematical Sciences Liaocheng University Liaocheng 252059 China Department of Mathematics Chizhou Teacher＇s College Chizhou 247000 China

Painleve property and infinite symmetries of the （2＋1）-dimensional higher-order Broer-Kaup （HBK） system are studied in this paper. Using the modified direct method, we derive the theorem of general symmetry *** to （2＋1）-dimensional HBK system. Based on our theorem, some new forms of solutions are obtained. We also find infinite number of conservation laws of the （2＋1）-dimensional HBK system.

关键词： (2+1)-dimensional HBK system Painleve property symmetries exact solution conservation laws

Symmetry Reductions, Exact Solutions and Conservation Laws of Asymmetric Nizhnik-Novikov-Veselov Equation

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Communications in Theoretical Physics 2008年第1期49卷 1-8页

作者： WANG Ling dong zhong-zhou LIU Xi-Qiang Department of Mathematics and Computer Science Chizhou University Chizhou 247000 China Software Engineering Institute East China Normal University Shanghai 200062 China School of Mathematics Sciences Liaocheng University Liaocheng 252059 China

By applying a direct symmetry method, we get the symmetry of the asymmetric Nizhnik-Novikov-Veselov equation （ANNV）. Taking the special case, we have a finite-dimensional symmetry. By using the equivalent vector of the symmetry, we construct an eight-dimensional symmetry algebra and get the optimal system of group-invariant solutions. To every case of the optimal system, we reduce the ANNV equation and obtain some solutions to the reduced equations. Furthermore, we find some new explicit solutions of the ANNV equation. At last, we give the conservation laws of the ANNV equation.

关键词： direct symmetry method ANNV equation optimal system explicit solution conservation laws

Symmetry Reduction, Exact Solutions, and Conservation Laws of （2＋1）-Dimensional Burgers Korteweg-de Vries Equation

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Communications in Theoretical Physics 2006年第1X期46卷 15-20页

作者： dong zhong-zhou LIU Xi-Qiang BAI Cheng-Lin School of Mathematical Science Liaocheng University Liaocheng 252059 China School of Physical Science and Information Engineering Liaocheng University Liaocheng 252059 China

Using the classical Lie method of infinitesimals, we first obtain the symmetry of the （2＋1）-dimensional Burgers-Korteweg-de-Vries （3D-BKdV） equation. Then we reduce the 3D-BKdV equation using the symmetry and give some exact solutions of the 3D-BKdV equation. When using the direct method, we restrict a condition and get a relationship between the new solutions and the old ones. Given a solution of the 3D-BKdV equation, we can get a new one from the relationship. The relationship between the symmetry obtained by using the classical Lie method and that obtained by using the direct method is also mentioned. At last, we give the conservation laws of the 3D-BKdV equation.

关键词： 3D-BKdV equation classical Lie method direct method conservation laws

Multi-target ranging using an optical reservoir computing approach in the laterally coupled semiconductor lasers with self-feedback

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Chinese Physics B 2022年第7期31卷 309-320页

作者： dong-zhou zhong Zhe Xu Ya-Lan Hu Ke-Ke Zhao Jin-Bo Zhang Peng Hou Wan-An Deng Jiang-Tao Xi Intelligent Manufacturing Faculty Wuyi UniversityJiangmen 529020China School of Electrical ComputerTelecommunications EngineeringUniversity of WollongGong2522Australia

We utilize three parallel reservoir computers using semiconductor lasers with optical feedback and light injection to model radar probe signals with *** radar probe signals are generated by driving lasers constructed by a threeelement laser array with *** response lasers are implemented also by a three-element lase array with both delay-time feedback and optical injection,which are utilized as nonlinear nodes to realize the *** show that each delayed radar probe signal can be predicted well and to synchronize with its corresponding trained reservoir,even when parameter mismatches exist between the response laser array and the driving laser *** on this,the three synchronous probe signals are utilized for ranging to three targets,respectively,using Hilbert *** is demonstrated that the relative errors for ranging can be very small and less than 0.6%.Our findings show that optical reservoir computing provides an effective way for applications of target ranging.

关键词： coupled semiconductor lasers lidar ranging optical reservoir computing chaos synchronization

基于四层等离子激元结构的椭球孔阵列光学漏波天线（英文）

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光子学报 2018年第2期47卷 83-92页

作者：钟东洲刘程鹏五邑大学信息与工程学院广东江门529020

基于四层等离子激元结构(硅-金-硅-二氧化硅),通过在金属层中构造不同的椭球孔阵列,提出了两种不同结构的光学漏波天线,分别为一维对称锥形结构和二维对称锥形结构.基于天线理论和有限元方法,对天线的物理特性进行数值研究。研究结果表... 详细信息

基于四层等离子激元结构(硅-金-硅-二氧化硅),通过在金属层中构造不同的椭球孔阵列,提出了两种不同结构的光学漏波天线,分别为一维对称锥形结构和二维对称锥形结构.基于天线理论和有限元方法,对天线的物理特性进行数值研究。研究结果表明:当工作波长为1 550nm时,这两种光学漏波天线带宽都为80THz(包含了S+-L+波段);当在天线端口处分别填充空气和氮化硅的时候,天线有较低的回波损耗和插入损耗,但对于两种不同的填充物,天线的特性表现出一些差异,例如,在一维对称结构中,天线端口处填充氮化硅时,天线有更少的回波损耗和插入损耗,更低的旁瓣电平,以及更好的方向性.该天线可用于光学集成互连、高度集成的光束控制和空间光通信中.

关键词：表面等离子激元空间光通信光学天线有限元法漏波天线辐射方向图天线阵列

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周期性极化铌酸锂晶体的电光复合逻辑门

光子学报 2015年第5期44卷 28-35页

作者：钟东洲计永强五邑大学信息工程学院广东江门529020

根据准相位匹配线性电光效应耦合波理论,基于单个周期性极化铌酸锂晶体,提出了外电场可控的电光复合与门、或门的逻辑计算方法.采用级联周期性极化铌酸锂晶体,探讨了外电场可控的电光复合逻辑异或门、半加法器、半减法器的逻辑计算方法... 详细信息

根据准相位匹配线性电光效应耦合波理论,基于单个周期性极化铌酸锂晶体,提出了外电场可控的电光复合与门、或门的逻辑计算方法.采用级联周期性极化铌酸锂晶体,探讨了外电场可控的电光复合逻辑异或门、半加法器、半减法器的逻辑计算方法.在外加电场分别为0.184KV/mm和0.368KV/mm条件下,分析了光波的波长、方位角和极角、晶体的温度对逻辑输出的影响.研究结果表明,基本逻辑门的逻辑计算能够成功实现,但其逻辑计算对光波波长、晶体温度、方位角和极化角非常敏感,这些参量轻微的变化会导致逻辑输出的改变.该方案可推广到更为复杂的基本逻辑门以及三个以上逻辑输入与输出的基本逻辑门中.

关键词：非线性光学逻辑门电光效应周期性极化铌酸锂晶体相位匹配偏振效应

外部光注入的光泵浦自旋垂直腔表面发射激光器中的两个混沌偏振分量对两个复杂形状目标中的多区域精确测距

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物理学报 2021年第7期70卷 154-166页

作者：钟东洲曾能杨华徐喆五邑大学智能制造学部江门529020

基于外部光注入的光泵浦自旋垂直腔表面发射激光器(vertical cavity surface-emitting laser,VCSEL)的两个混沌偏振分量,提出了对两个复杂形状目标中的多区域精确测距方案.这里,两个混沌偏振探测波具有飞秒量级快速动态并且被双极性sin... 详细信息

基于外部光注入的光泵浦自旋垂直腔表面发射激光器(vertical cavity surface-emitting laser,VCSEL)的两个混沌偏振分量,提出了对两个复杂形状目标中的多区域精确测距方案.这里,两个混沌偏振探测波具有飞秒量级快速动态并且被双极性sinc波形调制,使它们具有时空不相关特性.利用这些特性,通过计算多束延时反馈混沌偏振探测波形和与之相对应的参考波形的相关性,实现了对两个复杂形状目标多区域位置矢量精确测量.研究结果表明,对多区域小目标的测距具有非常低的相对误差(低于0.94%).当光电探测器的带宽足够大时,其测距的分辨率达到0.4 mm,并具有很强的抗噪声能力.本文的研究结果在复杂形状目标的精确测距方面具有潜在应用.

关键词：光泵浦自旋垂直腔表面发射激光器混沌偏振雷达多区域目标测距

双信道偏振复用保密通信系统的完全混沌同步的操控性研究

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物理学报 2014年第7期63卷 70-80页

作者：钟东洲邓涛郑国梁五邑大学信息工程学院江门529020 西南大学物理学院重庆400715 深圳大学电子科学与技术学院深圳518060

针对双信道偏振复用保密通信系统,利用线性电光效应,提出了一种新的完全混沌同步的控制方案.在该方案中,每一个线性偏振模的完全混沌同步质量随外加电场成准周期性变化.其变化规律:完全混沌同步?剧烈振荡;固定一定的外加电场,电光调制... 详细信息

针对双信道偏振复用保密通信系统,利用线性电光效应,提出了一种新的完全混沌同步的控制方案.在该方案中,每一个线性偏振模的完全混沌同步质量随外加电场成准周期性变化.其变化规律:完全混沌同步?剧烈振荡;固定一定的外加电场,电光调制促使其完全混沌同步质量对偏置电流和反馈强度的稳健性获得极大的加强.在较大的偏置电流和反馈强度范围内,每一个线性偏振模能够实现完全混沌同步,并且调制到每一个线性偏振模的加密信号基本上能够恢复.

关键词：外部光反馈垂直腔表面发射激光器电光调制双信道混沌保密通信系统完全混沌同步操控