检索结果-南通市图书馆

26th Session of the CIE

作者： Jaén M. Sandoval J Gor S Depto.de Luminotecnia Luz y Visión-Universidad Nacional de Tucumáan-ARGENTINA Depto.de Luminotecnia Luz y Visión-Universidad Nacional de Tucumáan-ARGENTINA Depto.de Luminotecnia Luz y Visión-Universidad Nacional de Tucumáan-ARGENTINA

＜正＞A work place receives direct emission from lamps,typically fluorescents,perhaps also from a localized incandescent one,from a natural light source if it is a diurnal journey,and all the reflexions on the ceiling,floor and walls all *** when all the fluorescent lamps used to be connected in the same phase to the main supply,reflexions imply a change of the wave phase and an incoherent summation of waves at each point of the work place that it is somehow related with the individual contributions. There are many reports linking complains of visual pains,headaches and fatigue experimented by users of environments lighted with fluorescent systems containing magnetic ballasts（MB）,with the users’ performance,that seems to be affected by temporal characteristics of light. It is therefore of interest for our study to make an assessment of the real modulation of these lamps when they are activated by MB or by electronic ballasts（EB）.A light modulation meter （LMM）adequate to our needs was *** instrument consist of a silicon photodiode sensor for the visible spectral range BPW21,whose electric signal is conditioned by means of a suitable electronic amplifier circuit,and then digitalised,processed and registered by a portable PC equipped with a digital acquisition board and a visual programming software.

关键词： temporal modulation light modulation meter office environment

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Photonics of time-varying media

引用

Advanced Photonics 2022年第1期4卷 30-61页

作者： Emanuele Galiffi Romain Tirole Shixiong Yin Huanan Li Stefano Vezzoli Paloma A.Huidobro Mário G.Silveirinha Riccardo Sapienza Andrea Alù J.B.Pendry City University of New York Photonics InitiativeAdvanced Science Research CenterNew YorkUnited States Imperial College London Blackett LaboratoryDepartment of PhysicsLondonUnited Kingdom Nankai University School of PhysicsTianjinChina Instituto de Telecomunicações Instituto Superior Técnico-University of LisbonLisboaPortugal City University of New York Physics ProgramGraduate CenterNew YorkUnited States

Time-varying media have recently emerged as a new paradigm for wave manipulation,due to the synergy between the discovery of highly nonlinear materials,such as epsilon-near-zero materials,and the quest for wave applications,such as magnet-free nonreciprocity,multimode light shaping,and ultrafast *** this review,we provide a comprehensive discussion of the recent progress achieved with photonic metamaterials whose properties stem from their modulation in *** review the basic concepts underpinning temporal switching and its relation with spatial scattering and deploy the resulting insight to review photonic time-crystals and their emergent research avenues,such as topological and non-Hermitian *** then extend our discussion to account for spatiotemporal modulation and its applications to nonreciprocity,synthetic motion,giant anisotropy,amplification,and many other ***,we conclude with a review of the most attractive experimental avenues recently demonstrated and provide a few perspectives on emerging trends for future implementations of time-modulation in photonics.

关键词： time-varying media temporal modulation metamaterials switching optics photonics light

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

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

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：