Alpha300

Raman microscopy Alpha300

Confocal Raman microscopy from Witec offers a unique possibility to obtain chemical information with a resolutions of up to 200 nm. This allows high-resolution analysis of the distribution of different components within a sample without complex sample preparation and under ambient conditions. In addition to the information from the sample surface, the confocal setup also makes it possible to gain insight into the interior of a transparent sample and therefore even get 3D information.

At each pixel a complete Raman spectrum is recorded, resulting in an image consisting of tens of thousands of spectra. The acquisition time for a spectrum takes only a few milliseconds, so a complete image can be acquired in just a few minutes. If the corresponding peak properties are subsequently analyzed, a large number of images can be generated from just one data set. In addition to the distribution of chemical components, e.g. crystallinity or material stress can also be investigated this way. Further fields of application are typically found in polymer research, surface technology, geosciences and the pharmaceutical industry.