Improved achromatization of phase mask coronagraphs using colored apodizationM. N’Diaye, K. Dohlen, S. Cuevas, R. Soummer, C. Sánchez-Pérez and F. ZamkotsianA&A, 538 (2012) A55DOI: https://doi.org/10.1051/0004-6361/201117661
