Chromatism compensation in wide-band nulling interferometry for exoplanet detection.
We introduce the concept of chromatism compensation in nulling interferometry that enables a high rejection ratio in a wide spectral band. Therefore the achromaticity condition considered in most nulling interferometers can be relaxed. We show that this chromatism compensation cannot be applied to a two-beam nulling interferometer, and we make an analysis of the particular case of a three-telescope configuration.
Optics Research Group, Department of Applied Sciences, Delft University of Technology, Lorentzweg 1, NL-2628 CJ Delft, The Netherlands. J.Spronck@tnw.tudelft.nl
Julien
J
Spronck
Silvania F
SF
Pereira
Joseph J M
JJ
Braat