Low-order aberration sensitivity of an optical vortex coronagraph

Details Low-order aberration sensitivity of an optical vortex coronagraph Low-order aberration sensitivity of an optical vortex coronagraph

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006optl...31.2981p&link_type=abstract

Optics Letters, vol. 31, Issue 20, pp.2981-2983

Physics

Optics

2

Diffractive Optics, Spatial Filtering, Telescopes, Astronomical Optics, Space Optics

Scientific paper

We describe a high-contrast imaging technique capable of directly
measuring light from a terrestrial planet by using a vortex mask of
topological charge m=5. We demonstrate that this technique is relatively
insensitive to low-order aberrations and compare its performance to that
of a band-limited Lyot coronagraph.

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