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gora-Lite+

显微原位多维光谱系统

<1μm 共焦平台

高信噪比

光纤光路设计

gora-Lite+ 显微原位多维光谱系统 采用高效率光纤共焦平台,可实现衍射极限(亚微米量级)的空间分辨率和高信噪比水平;在此基础上,结合模块化光路设计,可轻松实现拉曼,荧光,非线性光谱的多维光谱功能的组合;并配合自动对焦、电动扫描、电动切换、数据分析等易用性特点,是材料多维光谱表征的高效工具。

<1μm 共焦平台

高信噪比

简单易用

光纤光路设计

功能丰富

<1μm 共焦平台
采用共焦光路,实现在 XY 空间方向分辨率 0.5μm,Z轴方向分辨率 2μm 的超高空间分辨率; 

 

高信噪比
基于高效率光路设计,在 532nm 激发波长下,实现大于 5:1 的拉曼硅三阶峰信噪比,且硅的荧光背景远低于硅的拉曼一阶峰信号,信噪比达到同级别领先;

 

简单易用
将电控样品台与光谱仪进行联动,实现 XY轴自动 Mapping 成像,结合快速 Z轴自动对焦技术,不同模式电动切换,实现简单易用的多维光谱检测和成像;

 

光纤光路设计
可灵活搭配新葡萄奔驰AMG光纤光谱仪或成像光谱仪,满足不同应用场景的需求,实现高性价比的方案选择;

 

功能丰富
可实现拉曼光谱,荧光光谱,非线性光谱的任意组合,并轻易实现偏振拓展,高压,低温,真空等样品台的适配,满足原位多维光谱表征的需求。

 

技术参数

 

  技术参数

   型号

信息详情

   gora-Lite+

显微原位多维光谱系统

 

 典型系统参数

   项目内容

信息详情

   显微成像:

LED 光源,600 万像素相机,16 档强度可调

   模式切换:

电控切换

   样品台:

电控位移台可选,移动范围 75mm×50mm,最小步长 0.1μm

   物镜:

10× 50× 100× 平场半复消色差物镜组

   自动对焦:

Z 轴自动对焦可选

   光路:

光纤共焦光路

   偏振拓展:

支持偏振拓展,全电控切换,调节精度 1°,VH/HH 偏振下 360° 一键扫描

   样品台:

支持高低温、真空、高压等样品环境

   探测器选择:

光纤光谱仪:像素数 1024×64,短积分时间 4ms~60min,制冷温度低于环境温度 40℃,峰值量子化效率 90%

成像光谱仪:焦长320mm,分辨率 0.1nm @ 1200g/mm 光栅,三片光栅可选,像素数 2000×256,制冷温度至 -60℃,峰值量子化效率 90%

   拉曼光谱:

-R532

   激发波长:

532nm

   激发光源:

532nm 窄线宽单模光纤激光器,线宽 <0.1nm, 输出功率 50mW, 功率可调

   激发光斑直径:

< 1μm @ 100× 物镜

   成像空间分辨率:

500nm @ 100× 物镜

   信噪比:

5: 1 (硅三阶峰信噪比)

   拉曼光谱范围:

200~2900cm⁻¹ (其它波段可定制)

   功能:

观察成像、拉曼光谱测量、拉曼光谱 mapping

   荧光光谱:

-P405

   激发波长:

405nm

   测量波段:

观察成像、荧光光谱、荧光成像

   功能:

-N1030

   非线性光谱:

1030nm

   激发波长:

1030nm

   激发光源:

超快脉冲飞秒激光器,脉冲宽度 <200fs, 重复频率 25MHz, 平均功率 >100mW

   功能:

观察成像、二次谐波、三次谐波光谱测量、光谱 mapping、电极化扫描等

 

应用

案例

石墨烯层数鉴别

拉曼

分析仪器

gora

显微拉曼在石墨烯表征中的应用

就石墨烯材料及其器件的研究而言,鉴别石墨烯层数以及量化其无序性的影响是至关重要的。而显微拉曼光谱,是用于表征上述两种性能的便捷又可行的方法。

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参考文献

"Tunable WSe2–MoSe2 lateral heterojunction photodetector based on piezoelectric and flexoelectric effects." ACS Applied Materials & Interfaces (2024). 影响因子:8.5,单位:中科院上海微系统所,通讯作者:于广辉
"Flexible Piezoelectric Sensors Based on Ionic Liquid‐doped Poly (L‐Lactic Acid) for Human Coughing Recognition." Advanced Materials Technologies (2024). 影响因子:7.4,单位:五邑大学,通讯作者:杨建
"Synergistic effect between silver nanoparticles andantifungal agents on Candida albicans revealed bydynamic surface-enhanced Raman spectroscopy." Nanotoxicology (2018). 影响因子:5.811,单位:第二军医大学,通讯作者:陆锋
"Visible-blind quasi-solid-state UV detector based on SnO2-TiO2 nanoheterostructure arrays." Journal of Alloys and Compounds (2018). 影响因子:3.133,单位:山东大学,通讯作者:陈延学
"Fluorescence resonance energy transfer (FRET) based nanoparticles composed of AIE luminogens and NIR dyes with enhanced three-photon near-infrared emission for in vivo brain angiography." Nanoscale (2018) 影响因子:6.97,单位:瑞典斯德哥尔摩皇家理工学院电气工程学院,通讯作者:Sailing He
"Ultrathin Molybdenum Dioxide Nanosheets as Uniform and Reusable Surface-Enhanced Raman Spectroscopy Substrates with High Sensitivity." Small (2018) 影响因子:10.856,单位:南京航空航天大学 ,通讯作者:郭万林
"Tunable Aggregation-Induced Emission Nanoparticles by Varying Isolation Groups in Perylene Diimide Derivatives and Application in Three-Photon Fluorescence Bio-Imaging." ACS Nano (2018) 影响因子:13.903,单位:武汉大学 ,通讯作者:李振
"Record-Low-Threshold Lasers Based on Atomically Smooth Triangular Nanoplatelet Perovskite." Advanced Functional materials (2018) 影响因子:15.621,单位:陕西师范大学 ,通讯作者:刘生忠
"Slippery Surface Based on Photoelectric Responsive Nanoporous Composites with Optimal Wettability Region for Droplets' Multifunctional Manipulation." Advanced Science (2018) 影响因子:15.804,单位:北京航空航天大学,通讯作者:衡利苹
"One-drop Self-assembly and Size Control of Organic Nonlinear Optical Crystal DSNS Nanowires." Crystal Growth & Design (2019) 影响因子:4.153,单位:上海理工大学,通讯作者:蔡斌

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