Accuracy of refractive index spectroscopy by broadband interferometry

Rodríguez-Fernández, Carlos Damián; Arosa, Yago; Doval, Alejandro; López Lago, Elena; Fuente, Raúl de la

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http://hdl.handle.net/2183/37101

Accuracy of refractive index spectroscopy by broadband interferometry

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Rodriguez_Fernandez_Carlos_Damian_2022_Accuracy_of_refractive_index_spectroscopy.pdf (7 MB)

Identifiers

URI: http://hdl.handle.net/2183/37101

DOI: 10.1016/j.measurement.2021.110225

Publication date

2022

Authors

Rodríguez-Fernández, Carlos Damián

Arosa, Yago

Doval, Alejandro

López Lago, Elena

Fuente, Raúl de la

Bibliographic citation

Arosa, 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.2021.110225

Abstract

[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.