Hyperspectral infrared nanoimaging of organic samples based on Fourier transform infrared nanospectroscopy.

ABSTRACT: Infrared nanospectroscopy enables novel possibilities for chemical and structural analysis of nanocomposites, biomaterials or optoelectronic devices. Here we introduce hyperspectral infrared nanoimaging based on Fourier transform infrared nanospectroscopy with a tunable bandwidth-limited laser continuum. We describe the technical implementations and present hyperspectral infrared near-field images of about 5,000 pixel, each one covering the spectral range from 1,000 to 1,900 cm^-1. To verify the technique and to demonstrate its application potential, we imaged a three-component polymer blend and a melanin granule in a human hair cross-section, and demonstrate that multivariate data analysis can be applied for extracting spatially resolved chemical information. Particularly, we de

SUBMITTER: Amenabar I 

PROVIDER: S-EPMC5316859 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature