Dear Direct Imagers, Our paper (Singh et al 2014) on - TopicsExpress

Dear Direct Imagers, Our paper (Singh et al 2014) on controlling the pointing errors for phase mask coronagraphs via a reflective Lyot stop is now on arXiv and will appear in PASP June 2014 issue. This technique has been implemented on SCExAO (Subaru Coronagraphic ExAO system) and we have recently closed the loop on tip,tilt and focus on-sky with Vector Vortex with an accuracy of 10^-2 lambda/D at 1.6 micron. Might interest some of you. arxiv.org/abs/1404.7201

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