检索结果-南通市图书馆

Passive technologies for future large-scale photonic integrated circuits on silicon: polarization handling, light non-reciprocity and loss reduction

引用

Light(Science & Applications) 2012年第1期1卷 134-145页

作者： Daoxin Dai Jared Bauters John E Bowers Department of Electrical and Computer Engineering University of CaliforniaSanta BarbaraCA 93106USA Centre for Optical and Electromagnetic Research State Key Laboratory for Modern Optical InstrumentationZhejiang UniversityZijingangHangzhou 310058China

Silicon-based large-scale photonic integrated circuits are becoming important,due to the need for higher complexity and lower cost for optical transmitters,receivers and optical *** this paper,passive technologies for large-scale photonic integrated circuits are described,including polarization handling,light non-reciprocity and loss *** design rule for polarization beam splitters based on asymmetrical directional couplers is summarized and several novel designs for ultra-short polarization beam splitters are reviewed.A novel concept for realizing a polarization splitter–rotator is presented with a very simple fabrication *** of silicon-based light non-reciprocity devices(e.g.,optical isolator),which is very important for transmitters to avoid sensitivity to reflections,is also demonstrated with the help of magneto-optical material by the bonding ***-loss waveguides are another important technology for large-scale photonic integrated ***-low loss optical waveguides are achieved by designing a Si3N4 core with a very high aspect *** loss is reduced further to,0.1 dB m21 with an improved fabrication process incorporating a high-quality thermal oxide upper cladding by means of wafer *** the developed ultra-low loss Si3N4 optical waveguides,some devices are also demonstrated,including ultra-high-Q ring resonators,low-loss arrayed-waveguide grating(de)multiplexers,and high-extinction-ratio polarizers.

关键词： integration low loss non-reciprocal polarization silicon

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

Clustering of quorum sensing colloidal particles

引用

National Science Open 2024年第4期3卷 7-16页

作者： Yuxin Zhou Yunyun Li Fabio Marchesoni MOE Key Laboratory of Advanced Micro-Structured Materials and Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and EngineeringTongji UniversityShanghai 200092China Dipartimento di Fisica Universitàdi CamerinoCamerino I-62032Italy

We propose a simple model of colloidal suspension,whereby individual particles change their diffusivity from high(hot)to low(cold),as the local concentration of their closest peers grows larger than a certain *** a non-reciprocal interactive mechanism is known in biology as quorum *** tuning the parameters of the adopted quorum sensing protocol,the suspension is numerically shown to go through a variety of two-phase(hot and cold)*** is an archetypal model with potential applications in robotics and social studies.

关键词： cluster quorum sensing non-reciprocal phase separation colloidal particles

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

Investigation of a New Waveguide Structure Based on Negative Index Material for Optoelectronic Applications

引用

Optics and Photonics Journal 2017年第7期7卷 123-132页

作者： Nour El Houda Hissi Bouchra Mokhtari Saida Bahsine Noureddine Cherkaoui Eddeqaqi Mohammed Musa Shabat Physics Department Moulay Ismail University Meknes Morocco Physics Department Islamic University of Gaza Gaza Palestine

In this work, a waveguide structure consisting of a new artificial negative index material (NIM) surrounded by a nonlinear cover and a ferrite (YIG) substrate has been designed and investigated. We apply the boundary conditions and impose the condition of negative effective permeability of the ferrite slab to derive the dispersion relation related to the proposed structure. The NIM permittivity and permeability are not constant and depend on the operating frequency. The dispersion properties of the nonlinear electromagnetic surface waves (NEM) are analyzed and the associated propagation index is calculated. Results show that the dispersion could be tuned and controlled by selecting the NIM film thickness and the film-cover interface nonlinearity. The proposed structure is supporting unusual types of NEM surface waves having a non-reciprocal behavior widely used in designing optoelectronic devices.

关键词： Negative Index Material nonlinearity Ferrite Substrate Waveguide Dispersion Relation non-reciprocal Behavior

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

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

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

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：