Dataset for Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics

Collected data for the results presented in "Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics" demonstrating the use of a single hollow core negative curvature fibre for Raman and surface enhanced Raman spectroscopy sensing. This new optical fibre shows a 1000x background reduction compared to conventional fibres while maintaining the same collection efficiency. The dataset includes Raman and SERS spectra from different samples and attenuation data for a range of wavelengths for the negative curvature fibre.