Etalonnage absolu d’un spectrometre SISAM

Abstract
A SISAM spectrometer was adjusted. It was fitted with an apparatus for measuring absolute wavelengths. This used the fringes of a Fabry-Perot with emission lines. The results indicate that the width of the apparatus function is less than 0.025 cm−1 and that the relative accuracy of the wavelength measurements is 0.003 cm−1.

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