检索结果-南通市图书馆

Guided resonance in negative index photonic crystals: a new approach

Light(Science & Applications) 2014年第1期3卷 365-369页

作者： Silvia Romano Stefano Cabrini ivo rendina Vito Mocella CNR-IMM-Unita di Napoli 80131 NapoliItaly Molecular Foundry Lawrence Berkeley National LaboratoryBerkeleyCAUSA

The behavior of a negative refraction photonic crystal slab irradiated with out-of-plane incident beam is an unexplored *** such an experimental configuration,guided mode resonance appears in the reflection *** show that,in this case,the light coupled inside the photonic crystal is backpropagating.A relationship with the negative index properties is established using a new approach in which the guided resonance is recovered by modeling the photonic crystal layer with a simple Lorentz resonator using the Fresnel reflection formula.

关键词： diffraction gratings guided mode resonance negative index photonic crystals

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

Label-free sensing of ultralow-weight molecules with all-dielectric metasurfaces supporting bound states in the continuum

引用

Photonics Research 2018年第7期6卷 726-733页

作者： SILVIA ROMANO GIANLUIGI ZITO STEFANIA TORINO GIUSEPPE CALAFIORE ERIKA PENZO GIUSEPPE COPPOLA STEFANO CABRINI ivo rendina VITO MOCELLA Institute for Microelectronics and Microsystems Unit of Naples National Council of Research Institute of Protein Biochemistry National Council of Research Lawrence Berkeley National Laboratory Molecular Foundry Division

The realization of an efficient optical sensor based on a photonic crystal metasurface supporting bound states in the continuum is reported. Liquids with different refractive indices, ranging from 1.4000 to 1.4480, are infiltrated in a microfluidic chamber bonded to the sensing dielectric metasurface. A bulk liquid sensitivity of 178 nm/RIU is achieved, while a Q-factor of about 2000 gives a sensor figure of merit up to 445 in air at both visible and infrared excitations. Furthermore, the detection of ultralow-molecular-weight(186 Da) molecules is demonstrated with a record resonance shift of 6 nm per less than a 1 nm thick single molecular layer. The system exploits a normal-to-the-surface optical launching scheme, with excellent interrogation stability and demonstrates alignment-free performances, overcoming the limits of standard photonic crystals and plasmonic resonant configurations.

关键词：高效光学传感器折射率理论研究通讯技术

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

Ellipsometric determination of permittivity in a negative index photonic crystal metamaterial

引用

Light(Science & Applications) 2012年第1期1卷 1-5页

作者： Principia Dardano Massimo Gagliardi ivo rendina Stefano Cabrini Vito Mocella Institute for microelectronics and microsystems National Council of ResearchDepartment of NaplesNaples 80131Italy Molecular Foundry Lawrence Berkeley National LaboratoryBerkeleyCAUSA

In this work,we present the first experimental evidence of negative dielectric susceptibility in a two-dimensional silicon photonic crystal(PhC)with negative refractive index *** the frequency range in which the effective refractive index neff is equal to 21,the incident light couples efficiently to the guided modes in the top surface layer of the PhC *** modes resemble surface plasmon polariton *** finding was confirmed by ellipsometric measurements,demonstrating the isotropy of the PhC *** negative index PhC materials may be of use in biosensing applications.

关键词： diffraction gratings metamaterials photonic crystals

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：