检索结果-南通市图书馆

Lithium niobate waveguides with high-index contrast and preserved nonlinearity fabricated by a high vacuum vapor-phase proton exchange

引用

Photonics Research 2020年第1期8卷 8-16页

作者： ALICIA PETRONELA RAMBU ALIN MARIAN APETREI florent doutre HERVéTRONCHE VASILE TIRON MARC DE MICHELI SORIN TASCU Research Center on Advanced Materials and Technologies Science DepartmentInstitute of Interdisciplinary ResearchAlexandru loan Cuza University of Iasi700506 IasiRomania Universite Cote d'Azur CNRSInstitut de Physique de Nice(INPHYNI)UMR 7010NiceFrance Research Department Faculty of PhysicsAlexandru loan Cuza University of Iasi700506 IasiRomania

Highly confining waveguides(Δne>0.1)without a degraded nonlinear coefficient and low propagation losses have been fabricated in lithium niobate(LN)by a new process that we called high vacuum vapor-phase proton exchange(Hi Vac-VPE).Index contrast,index profile,nonlinearity,and crystallographic phases are carefully *** analysis of index profiles indicates that the waveguides contain sub-layers whose depths depend on the exchange *** behavior,propagation losses,and second-harmonic generation response of Hi Vac-VPE channel waveguides are investigated at telecom *** results recommend Hi Vac-VPE as a very promising technique for fabricating efficient nonlinear photonic integrated circuits in LN crystals.

关键词： exchange index nonlinearity

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

Creation of periodical domain structure by local polarization reversal in planar waveguide produced by soft proton exchange in LiNbO_(3)

引用

Journal of Advanced Dielectrics 2023年第6期13卷 39-44页

作者： Evgeniy Savelyev Andrey Akhmatkhanov Boris Slautin Herve Tronche florent doutre Tommaso Lunghi Pascal Baldi Vladimir Shur Institute of Natural Sciences and Mathematics Ural Federal University 620002 EkaterinburgRussia Institut de Physique de Nice Universite Cote d’AzurCNRS06108 Nice Cedex 2France

The paper presents the results of an experimental study of the local polarization reversal and creation of domains by a biased tip of scanning probe microscope(SPM)in lithium niobate single crystals of congruent composition with a surface layer modified by soft proton exchange(SPE).The depth dependence of Ht ions concentration in the SPE-modified layer measured by confocal Raman microscopy demonstrates a sufficient composition *** creation of isolated domains and stripe domain structures has been done by two switching modes:(1)point switching by field application in separated points and(2)line scanning switching by motion of the biased tip being in contact with the sample *** point switching for pulse durations less than 10 s,the logarithmic dependence of the domain diameter on the pulse duration was *** change of the dependence to a linear one for pulse duration above 10 s has been attributed to the transition from the stochastic step generation at the domain wall to the deterministic one at the domain *** periodical structure of stripe domains was created in SPE CLN planar waveguides by scanning at elevated *** revealed switching regime suppresses electrostatic interaction of neighboring domains and leads to a significant improvement of the domain structure *** creation of the stable periodical domain structure with submicron periods in SPE CLN planar waveguides was demonstrated.

关键词： Scanning probe microscopy piezoelectric force microscopy periodical poling composition gradient

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

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：