Direct refractive index retrieval from interferometry measurements
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 characteriz...
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| Veröffentlicht in: | Review of scientific instruments 2020-04, Vol.91 (4), p.045111-045111 |
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| container_issue | 4 |
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| container_title | Review of scientific instruments |
| container_volume | 91 |
| creator | Galletti, Mario Künzel, Swen Alves, Joana Hariton, Victor Pires, Hugo João, Celso Paiva Figueira, Gonçalo Dias, João Mendanha |
| description | 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. |
| doi_str_mv | 10.1063/1.5129093 |
| format | Article |
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| ispartof | Review of scientific instruments, 2020-04, Vol.91 (4), p.045111-045111 |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_5129093 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Algorithms Data retrieval Numerical methods Refractivity Robustness (mathematics) Scientific apparatus & instruments Soldering Soldering irons |
| title | Direct refractive index retrieval from interferometry measurements |
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