Optical tomograph for the measurement of 3-dimensional refractive index distribution in a liquid

Luc C. Joannes; Olivier Dupont; Kenneth Löth

doi:10.1117/12.2500122

13 April 2018 Optical tomograph for the measurement of 3-dimensional refractive index distribution in a liquid

Luc C. Joannes, Olivier Dupont, Kenneth Löth

Proceedings Volume 10568, International Conference on Space Optics — ICSO 2004; 105682R (2018) https://doi.org/10.1117/12.2500122
Event: International Conference on Space Optics 2004, 2004, Toulouse, France

Abstract

A compact Interferometric Tomograph has flown on a MASER sounding rocket in spring 2002. This original instrument has been developed by Lambda-X (optics) and the Swedish Space Corporation-SSC (electronics) to measure 3-dimentional temperature (through refractive index) distribution in a liquid while it evaporates though a limited free surface. The tomograph includes 6 interferometers arranged symmetrically around a liquid cell. The paper describes the module and concentrates on the optical beam splitting and combining original systems that have been implemented in the compact instrument; holographic gratings are used to split the sole laser beam into 6 beams and to combine the 6 interferometer views on 2 CCD cameras. Finally, 3-dimentional temperature distributions reconstructed from flight data are presented.

Citation Download Citation

Luc C. Joannes, Olivier Dupont, and Kenneth Löth "Optical tomograph for the measurement of 3-dimensional refractive index distribution in a liquid", Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105682R (13 April 2018); https://doi.org/10.1117/12.2500122

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