Abstract

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.

© 2006 Optical Society of America

Optical vortex coronagraph

Gregory Foo, David M. Palacios, and Grover A. Swartzlander
Opt. Lett. 30(24) 3308-3310 (2005)

Nonlinear optical vortex coronagraph

Einstom Engay and Peter John Rodrigo
Opt. Lett. 45(6) 1579-1582 (2020)

Astronomical demonstration of an optical vortex coronagraph

Grover A. Swartzlander, Erin L. Ford, Rukiah S. Abdul-Malik, Laird M. Close, Mary Anne Peters, David M. Palacios, and Daniel W. Wilson
Opt. Express 16(14) 10200-10207 (2008)

Optical Vectorial Vortex Coronagraphs using Liquid Crystal Polymers: theory, manufacturing and laboratory demonstration

D. Mawet, E. Serabyn, K. Liewer, Ch. Hanot, S. McEldowney, D. Shemo, and N. O’Brien
Opt. Express 17(3) 1902-1918 (2009)

Low-angle optical vortex coronagraphic scatterometer

Lingyu Wan, Garreth J. Ruane, and Grover A. Swartzlander
Opt. Lett. 41(21) 4915-4918 (2016)