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Communication Dans Un Congrès Année : 2018

Resolving nanomaterial properties at better than 50nm resolution in raman spectroscopy

Résumé

A 2D hyperspectral Raman map (pixel size 20nm x 20nm) of polymer (PEDOT) nanowires (diameter 100nm) is decomposed into spectral sources and respective abundance maps using bounding hyperplane-based hyperspectral unmixing. The resulting abundance maps are independently deconvolved using an interior point least squares algorithm with a positivity constraint. Spectral changes along and across the wires, as well as differences between wires, can be resolved to better 50nm, a significantly better than the 400nm instrument resolution.
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Dates et versions

hal-02585957 , version 1 (15-05-2020)

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  • HAL Id : hal-02585957 , version 1

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D. Winterauer, Tim Batten, Saïd Moussaoui, Bernard Humbert, Daniel Funes. Resolving nanomaterial properties at better than 50nm resolution in raman spectroscopy. SIAM Conference on Imaging Science, Jun 2018, Bologne, Italy. ⟨hal-02585957⟩
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