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Sub-Micron Spatial Resolution in Far-Field Raman Imaging Using Positivity-Constrained Super-Resolution.
Winterauer, Dominik J; Funes-Hernando, Daniel; Duvail, Jean-Luc; Moussaoui, Saïd; Batten, Tim; Humbert, Bernard.
Afiliação
  • Winterauer DJ; 1 Renishaw plc, Wotton-under-Edge, UK.
  • Funes-Hernando D; 2 Institut des Matériaux Jean Rouxel (IMN), UMR 6502 CNRS - Université de Nantes, Nantes, France.
  • Duvail JL; 2 Institut des Matériaux Jean Rouxel (IMN), UMR 6502 CNRS - Université de Nantes, Nantes, France.
  • Moussaoui S; 2 Institut des Matériaux Jean Rouxel (IMN), UMR 6502 CNRS - Université de Nantes, Nantes, France.
  • Batten T; 3 Laboratoire des Sciences du Numérique de Nantes (LS2N), UMR 6502 CNRS - Université de Nantes, Nantes, France.
  • Humbert B; 1 Renishaw plc, Wotton-under-Edge, UK.
Appl Spectrosc ; 73(8): 902-909, 2019 Aug.
Article em En | MEDLINE | ID: mdl-30916988
ABSTRACT
Raman microscopy is a valuable tool for detecting physical and chemical properties of a sample material. When probing nanomaterials or nanocomposites the spatial resolution of Raman microscopy is not always adequate as it is limited by the optical diffraction limit. Numerical post-processing with super-resolution algorithms provides a means to enhance resolution and can be straightforwardly applied. The aim of this work is to present interior point least squares (IPLS) as a powerful tool for super-resolution in Raman imaging through constrained optimization. IPLS's potential for super-resolution is illustrated on numerically generated test images. Its resolving power is demonstrated on Raman spectroscopic data of a polymer nanowire sample. Comparison to atomic force microscopy data of the same sample substantiates that the presented method is a promising technique for analyzing nanomaterial samples.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article