SOP：https://iscms.westlake.edu.cn/technique/SOP-WITec-Alpha300R.pdf

样品要求：固体、液体、薄膜材料、高分子等无腐蚀性材料都可以测试，具体每种材料的制样方法参见技术资料。

Instrument No.LHA19120048Specification2090000

ManufactureWITecModelAlpha300R

Made inGermanyClassification No.010410

Location4#220Manufacture date20/11/2019

Purchase Date5/8/2019Internet access time2/1/2010

Main Technical specifications

1. Spectral resolution (normal measurement) : ≤ 0.8cm-1;

2. Low wavenumber: 473nm: 100 cm-1; 532nm: 10 cm-1; 633 nm: 80 cm-1;

3. Spatial resolution of Raman mapping: transverse (XY) : ≤350 nm @ 532 nm; Longitudinal (Z) : ≤ 900 nm@532 nm

4. Confocal sensitivity: SNR of the silicon third-order Raman peak (approx. 1440 cm-1) was better than 25:1;

Main functions and features

The main characteristics of WITec high resolution fast mapping Mircro-Raman spectrometer are: high resolution and fast Raman mapping, single point test time less than 1ms, mapping spatial resolution: transverse (XY) : ≤350 nm @ 532 nm; Longitudinal (Z) : ≤ 900 nm@532 nm, and equipped with the following functional accessories:

1. Laser: three excitation wavelengths: 473nm (25mw); 532nm (75mw) and 633nm (50mw)

2. Zeiss open optical microscope, equipped with a dark field scattering module to measure dark field scattering spectrum;

3. Polarization accessory: Measure rotate polarization of the excitation light path and signal light path

4. Automatic focusing accessory: Fast Raman mapping together with real-time focusing on rough surface

5. Photocurrent mapping accessories (including current source): the spatial resolution of photocurrent mapping is better than 500nm

6. Cold and heat temperature-control system: temperature range: -196° -600 °C, combined with electrical testing function;

Information:

Sample requirements: All solid, liquid, film material, polymerss and other non-corrosive materials can be tested. Please refer to the technical information for the specific sample preparation method of each material.