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Lipids are abundant in C-H 2 groups. Thus in their Raman spectrum, the relatively isolated peaks associated with C-H bond vibrational states at 2845 cm -1 provide a unique signature for lipids inside a cell, distinguishing them from other chemical species. Stimulated Raman scattering (SRS) microscopy allows vibrational contrast mechanism for imaging with high spectral and spatial resolution along with three-dimensional sectioning. SRS has proven to be particularly powerful for studying lipid rich structures. Additionally, lipid droplets (LDs) provide an especially strong signal for SRS microscopy. In this paper, the implementation of a microscope based on the femtosecond stimulated Raman scattering (f- SRS) spectroscopy not commercially available, working into the C-H region or O-H region (2800-3200 cm -1 ) in stimulated Raman gain (SRG) modality is outlined. In addition, an investigation of LDs in fixed …
Publication date: 
1 Jul 2018

Maria Antonietta Ferrara, Angela Filograna, Annalisa D’Arco, Rajeev Ranjan, Carmen Valente, Michele Larobina, Luigi Sirleto

Biblio References: 
Pages: 1-4
2018 20th International Conference on Transparent Optical Networks (ICTON)