Quantitative Analysis Of Small Gas Bubbles In Glass With Diameters Down To 60 Microns With Micro-Raman Spectroscopy

Micro-Raman spectroscopy is a non-destructive technique for analysing gaseous contents of bubbles in glass. For other methods like gas chromatography and mass spectroscopy the destruction of the bubble is necessary for this analysis. With Micro-raman spectroscopy it is possible to investigate the gaseous inclusions under different conditions, e.g. at different temperatures. Raman-spectra (Stokes scattering) of pure rotational molecular excitations were recorded and analysed for the quantitative investigations.