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Questions related from Alain Celzard
Most carbon phases are anisotropic, and therefore their Raman spectra are sensitive to polarisation of light. Besides, the gratings don't have exactly the same response when light is polarised or...
08 March 2015 9,389 6 View
I have a Horiba XPlora Raman spectrometer equipped with 3 lasers: 532, 638 and 785 nm. 532 nm burns the wood samples, even at 0.1% of its power, and gives unexploitable spectra. 638 nm laser may...
09 June 2014 8,790 21 View
There are hundreds of papers about Raman spectroscopy of carbon materials, whether the latter are graphites, disordered or diamond-like carbons, CNTs, graphene, etc. Therefore, to avoid missing...
16 February 2014 9,176 8 View
We are working on solid foams. Micro-tomography gives very nice pictures, but what we need is getting quantitative information from them : surface area, distributions of cell sizes, window size...
06 February 2014 8,384 68 View
Spirals of fused silica have been extensively used in old thermobalances, because of the extremely low expansion coefficient of silica. Explanations or links towards how these objects were...
22 December 2013 2,037 6 View
