Rodríguez-Fernández, Carlos DamiánArosa, YagoDoval, AlejandroLópez Lago, ElenaFuente, Raúl de la2024-06-182024-06-182022Arosa, Y., Damián Rodríguez-Fernández, C., Doval, A., López Lago, E., & de la Fuente, R. (2022). Accuracy of refractive index spectroscopy by broadband interferometry. Measurement: Journal of the International Measurement Confederation, 187. https://doi.org/10.1016/J.MEASUREMENT.2021.110225http://hdl.handle.net/2183/37101[Abstract] Uncertainties of refractive and group index in dispersion measurement by spectrally resolved white light interferometry are deeply analyzed. First, the contribution to uncertainty of the different parameters affecting both indices is identified. Afterwards, results are presented for a 1.5 mm thick fused silica sample over a broad spectral range, from 400 to 1000 nm, and the effects that mostly deteriorate the measurement accuracy are established. Finally, the different contributions are quadratically combined to determine the total uncertainty of the two indices.engCC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).http://creativecommons.org/licenses/by-nc-nd/3.0/es/DispersionSpectroscopySpectral interferometryUncertaintyjournal articleopen access10.1016/j.measurement.2021.110225