显微拉曼光谱仪的自动聚焦追踪技术

LiveTrack™实时聚焦追踪技术可在凹凸不平的样品表面上自动保持聚焦。即使在高度呈毫米级变化的样品表面上，光谱仪也能保持亚微米级聚焦。得益于LiveTrack技术，您的雷尼绍显微拉曼光谱仪还可用作光学轮廓测量仪。

对凹凸不平的表面进行显微拉曼光谱分析

利用LiveTrack技术，您可以节省样品制备时间，不再需要制备矿物切片或药片薄片。即使对存在轻微翘曲或弯曲的大尺寸半导体晶圆，也可以轻松进行拉曼分析。

LiveTrack技术对于灵敏度要求极高的拉曼测量非常重要，其中包括纳米粒子或薄膜等样品。LiveTrack技术可确保高数值孔径 (N.A.) 物镜在整个数据采集过程中在样品上保持聚焦。因此，光谱仪可从样品表面采集高强度拉曼信号。通过保持聚焦还可确保拉曼图像具有高空间分辨率。

拉曼光谱仪利用连续反馈来调整样品台的高度。您只需在样品上聚焦，然后点击一下即可激活LiveTrack技术。无需任何额外的设置时间或预扫描。

对凹凸不平的样品执行显微镜检测时，LiveTrack技术可以取代低效的手动重复聚焦。WiRE™软件还可将多个图像拼接出一个清晰聚焦的图像，覆盖凹凸不平样品上的大面积区域。

为什么使用形貌拉曼成像技术？

LiveTrack技术可与雷尼绍的所有快速拉曼成像技术配合使用。WiRE软件可将样品表面的拉曼图像叠加到3D形貌图像上。由此生成的3D拉曼图像可以帮助您了解化学性质和结构与形貌的关系。您还可以提取样品在x平面和y平面的横截面，以获取尺寸信息。

图库

LiveTrack silicon wafer

Indentation of a silicon wafer by a diamond Vickers indenter, using 500 g load. Confocal StreamHR Raman data collected at 532 nm excitation with LiveTrack (100× objective). The analysed surface is 78 µm wide, 58 µm deep, and 4.6 µm high. The topography image (left) shows median and lateral cracking, and material removal by chipping. The image also reveals the raised area surrounding the indent, caused by the plastic deformation. The Raman image (right) reveals stresses around the indent (compressive regions white/yellow, tensile regions black/dark red). The blue-green region within the indent is silicon that has been very highly plastically deformed, with a highly amorphous structure.
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LiveTrack screwdriver bit

Analysis of a coated flat-head screwdriver bit. StreamHR confocal Raman data were collected at 532 nm excitation, with LiveTrack (20× objective); two images were generated, with the bit oriented side- and end-on. The images reveal the distributions of TiN (green) and TiO2 (magenta). The imaged surfaces are: 4.3 mm wide, 4.0 mm deep, and 6.4 mm high (left image); and 8.1 mm wide, 5.1 mm deep and 3.6 mm high (right image).
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虎眼石

使用532 nm激发波长和20倍物镜检测以石英为主要成分的岩石（虎眼石）。拉曼图像显示出石英（青色）和无机碳酸盐（黄色）。成像表面的面积为：宽47 mm、深26 mm、高3.0 mm。
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Fresnel lens

Image of a Fresnel lens showing the concentric ring lens topography and, from Raman analysis, contamination (red), which is preferentially located in the grooves of the rings. Data were collected using 532 nm excitation and a 50× objective. The analysed surface is 4.5 mm wide, 1.3 mm deep, and 24 µm high.
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Virsa LiveTrack Image of Graphene Carbon Grown on a Copper Substrate

Virsa LiveTrack Image of Graphene Grown on a Copper Substrate
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Raman images of rat mandible

(a) 2D and (b) 3D Raman images showing variation in surface topography of a rat mandible, as determined using Renishaw LiveTrack technology.
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pharmaceutical 3D with API

3D LiveTrack image of pharmaceutical tablet with the API overlaid in blue
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