High-vacuum pinpoint enhanced Raman device
A tip-enhanced Raman and high-vacuum technology, used in measurement devices, Raman scattering, scanning probe technology, etc.
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[0018] Such as figure 1 As shown, the device includes three main parts, namely the analysis chamber 1, the sample preparation chamber 2 and the sample injection chamber 3. The three are connected by the sample injection channel 4. In the working state, the entire device is in a vacuum state. The analysis room 1 is the core part of this device, and is the joint part of scanning tunneling microscope STM and Raman detection. Such as figure 2 , 3 As shown, a set of scanning tunnel microscope STM device 5 is installed in the analysis room. The STM device 5 has a horizontal resolution of 0.1 nanometers and a longitudinal resolution of 0.01 nanometers. The needle tip is on the central axis of the STM cavity. The Raman detection front stage 6 is arranged on a three-dimensional mobile platform 7 that can move three-dimensionally. The front end of the Raman detection front stage 6 is provided with a first flange 13 which is connected to the second method of the bellows 23. The flange ...
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