Paeder, V.Scharf, T.Ruffieux, P.Herzig, H. P.Voelkel, R.Weible, K. J.2009-04-222009-04-222009-04-22200710.2971/jeos.2007.07005https://infoscience.epfl.ch/handle/20.500.14299/38028Microlenses with annular amplitude and phase maskstext::journal::journal article::research article