仪器分类
1. 非像散单级光谱仪
1.1 系统总通光效率大于50%
1.2 可见聚焦透镜,使光谱分辨率和通光效率最佳。
1.3 采用光栅尺控制光栅转台,,三点机械定位连接方式
1.4 光谱重复性<= +/- 0.02cm-1
1.5 独特的快速连续扫描方式可获得任意宽波段光谱,无需接谱,不受CCD宽度的限制,并保持高光谱分辨率。光谱分辨率可通过CCD的binning方式连续可变。
1.6 标准CCD探测器(1024 x 256 像素)。半导体冷却至–70 ºC,无需水或液氮冷却。
1.7 计算机控制激光衰减片,共16级,从0.000005到100%。
2. 采用研究级徕卡显微镜 ,专门设计的谱仪与显微镜耦合器件,可实现共焦显微测量包括:反射照明灯、彩色摄像机、x5,x20, x100 and x50LWD镜头。
3. 激光器
3.1 532nm激光器,50 mW,可连接三点机械定位激光器底板,1800线/毫米光栅,含532nm等离子滤光片。
3.2 785nm激光器,300 mW,高分辨率光栅(1200刻线/毫米),配用于滤除785nm瑞利线的瑞利滤光片。
1. Non-astigmatic single-stage spectrometer
1.1 The overall light transmission efficiency of the system is greater than 50%.
1.2 A visible focusing lens is employed to optimize spectral resolution and light transmission efficiency.
1.3 A grating rotary stage controlled by a linear encoder is adopted, with a three-point mechanical positioning connection method.
1.4 Spectral repeatability is <= +/- 0.02 cm⁻¹.
1.5 A unique rapid continuous scanning mode enables the acquisition of spectra across any wide wavelength band without the need for stitching,不受CCD宽度限制 (translated as: "without being limited by the CCD width"), while maintaining high spectral resolution. The spectral resolution can be continuously varied through CCD binning.
1.6 Standard CCD detector (1024 x 256 pixels). Semiconductor cooling to –70 ºC, eliminating the need for water or liquid nitrogen cooling.
1.7 Computer-controlled laser attenuator with 16 levels, ranging from 0.000005 to 100%.
2. Utilizing a research-grade Leica microscope with a specially designed spectrometer-to-microscope coupling device, enabling confocal microscopic measurements including: reflective illumination lamp, color camera, and x5, x20, x100, and x50 LWD lenses.
3. Laser
3.1 A 532nm laser with 50 mW power, capable of connecting to a three-point mechanical positioning laser baseplate, equipped with an 1800 lines/mm grating and a 532nm plasma filter.
3.2 A 785nm laser with 300 mW power, featuring a high-resolution grating (1200 grooves/mm) and a Rayleigh filter for eliminating the 785nm Rayleigh line.
显微共焦拉曼光谱仪是以拉曼效应为基础建立起来的分子结构表征技术,其信号来源于分子的振动和转动,表征了分子和化学键的特征,是一种重要的分析物质组分、结构的手段。通过拉曼光谱的分析,可以获得物质的振动转动能级信息,从而鉴别物质,分析物质的性质,对分析材料结构和性质的变化非常有帮助。
Micro-Confocal Raman spectroscope is a molecular structure characterization technique established based on the Raman effect. Its signals originate from molecular vibrations and rotations, representing the characteristics of molecules and chemical bonds. It serves as an important means for analyzing the composition and structure of substances. Through Raman spectral analysis, information about the vibrational and rotational energy levels of substances can be obtained, enabling the identification of substances and the analysis of their properties. This is highly beneficial for analyzing changes in the structure and properties of materials.
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