Publication Date:
2019-07-13
Description:
Direct imaging and characterization of exo-solar terrestrial planets require coronagraphic instruments capable of suppressing star light to 10-10. Pupil shaping masks have been proposed and designed1 at Princeton University to accomplish such a goal. Based on Princeton designs, free standing (without a substrate) silicon masks have been fabricated with lithographic and deep etching techniques. In this paper, we discuss the fabrication of such masks and present their physical and optical characteristics in relevance to their performance over the visible to near IR bandwidth.
Keywords:
Optics
Type:
SPIE Astronomical Telescopes and Instrumentation; May 24, 2006 - May 31, 2006; Orlando, FL; United States
Format:
text
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