We present an alternative numerical method to the Abel inversion technique, which can be applied to complex non-symmetrical systems. A comparison with the Abel inversion algorithm was conducted. For benchmarking, the method was applied to a synthetic trace representing a plasma waveguide characterized by a constant parabolic density profile. Furthermore, the temperature and refractive index of a plume of hot air surrounding a non-cylindrical soldering iron were retrieved. Temperatures between 50 °C and 200 °C were successfully retrieved within the instrument precision. The proposed method allows robust and fast data retrieval while maintaining the accuracy and resolution of well-known methods, as Abel inversion.

Galletti, M., Künzel, S., Alves, J., Hariton, V., Pires, H., João, C.p., et al. (2020). Direct refractive index retrieval from interferometry measurements. REVIEW OF SCIENTIFIC INSTRUMENTS ONLINE, 91(4) [10.1063/1.5129093].

Direct refractive index retrieval from interferometry measurements

Galletti, Mario;
2020-04-01

Abstract

We present an alternative numerical method to the Abel inversion technique, which can be applied to complex non-symmetrical systems. A comparison with the Abel inversion algorithm was conducted. For benchmarking, the method was applied to a synthetic trace representing a plasma waveguide characterized by a constant parabolic density profile. Furthermore, the temperature and refractive index of a plume of hot air surrounding a non-cylindrical soldering iron were retrieved. Temperatures between 50 °C and 200 °C were successfully retrieved within the instrument precision. The proposed method allows robust and fast data retrieval while maintaining the accuracy and resolution of well-known methods, as Abel inversion.
1-apr-2020
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
Settore FIS/03 - FISICA DELLA MATERIA
English
Galletti, M., Künzel, S., Alves, J., Hariton, V., Pires, H., João, C.p., et al. (2020). Direct refractive index retrieval from interferometry measurements. REVIEW OF SCIENTIFIC INSTRUMENTS ONLINE, 91(4) [10.1063/1.5129093].
Galletti, M; Künzel, S; Alves, J; Hariton, V; Pires, H; João, Cp; Figueira, G; Dias, Jm
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/319858
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