EAS Publications Series
Volume 12, 2004Astronomy with High Contrast Imaging II
|Page(s)||287 - 291|
|Published online||11 October 2004|
C. Aime and R. Soummer (eds)
EAS Publications Series, 12 (2004) 287-291
A prototype for piston sensing by the dispersed speckle method
LISE - Collège de France, Observatoire de Haute Provence, 04870 St Michel l'Observatoire, France;
We describe a prototype instrument built to validate the principle of the dispersed speckle method (Borkowski et al. 2002; Borkowski et al. 2004). This prototype, still under test, is a spectrograph where the multiple pupil, highly reduced in size, replaces the slit. An array of optical wedges is added near the grating to separate the spectra from each speckle. The fabrication and properties will be explained.
© EAS, EDP Sciences, 2004
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