Apodized Pupil Lyot Coronagraphs for Arbitrary Telescope Apertures

By Remi Soummer. 2004

242 citations recorded by the source corpus.

In the context of high dynamic range imaging, this study presents a breakthrough for the understanding of apodized pupil Lyot coronagraphs, making them available for arbitrary aperture shapes. These new solutions find immediate application in current, ground-based coronagraphic studies (Gemini, VLT) and in existing instruments (Advanced Electro-Optical System Lyot Project). They also offer the possibility of a search for an on-axis design for the Terrestrial Planet Finder. The unobstructed aperture case has already been solved by C. Aime et al. and R. Soummer et al. Analytical solutions with identical properties exist in the general case and, in particular, for centrally obscured apertures. Chromatic effects can be mitigated with a numerical optimization. The combination of analytical and numerical solutions enables the study of the complete parameter space (central obstruction, apodization throughput, mask size, bandwidth, and Lyot stop size).

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/996757af532be782a9cecc540c82dc27b6d34954

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Atomic and Molecular Physics, and Optics

In Instrumentation

Citations in the corpus

Photometric characterization of exoplanets using angular and spectral differential imaging (2010, background): “…near-infrared (Fusco et al. 2006; Aller-Carpentier et al. 2008); and (ii) high-efficiency coronagraphs such as the apodized pupil Lyot coronagraph (Soummer 2005 and references therein) or the achromatic 4-quadrant phase mask (Rouan et al. 2000; Mawet et al. 2006) to obtain optimal star extinction.”
DETECTION AND CHARACTERIZATION OF EXOPLANETS AND DISKS USING PROJECTIONS ON KARHUNEN–LOÈVE EIGENIMAGES (2012, methodology): “Even using advanced starlight suppression systems (e.g. coronagraphs) such as the one designed for the Gemini Planet Imager (Sivaramakrishnan et al. 2001; Soummer 2005; Soummer et al. 2011b), image post-processing remains necessary to achieve the full high-contrast performance (Marois et al. 2008b).”
SPHERE: the exoplanet imager for the Very Large Telescope (2019, background): “The near IR channel offers two types of coronagraphs, the apodized-pupil Lyot coronagraph (ALC, Soummer 2005), and the half-wave plate four-quadrant phase mask (HW-4QPM Rouan et al. 2000; Mawet et al. 2006), both being designed to achieve very high-contrast at very short angular separations.”
Theoretical Limits on Extrasolar Terrestrial Planet Detection with Coronagraphs (2006, methodology): “We note that several techniques have been proposed to adapt ”unfriendly” pupil shapes (central obstruction, spiders) to specific coronagraphs (Soummer 2005; Murakami & Baba 2005).”
Imaging Extrasolar Giant Planets (2016, background): “…and specialized coronagraphs (e.g., apodized Lyot coronagraph, annular groove phase mask coronagraph, vector vortex coronagraph, apodizing phase plate, and four quadrant phase mask; Rouan et al. 2000; Guyon et al. 2005; Soummer 2005; Mawet et al. 2005; Kenworthy et al. 2007; Mawet et al. 2010).”
First light of the VLT planet finder SPHERE - III. New spectrophotometry and astrometry of the HR 8799 exoplanetary system (2015, methodology): “The coronagraph used for all the sequences is an apodized pupil Lyot coronagraph (Soummer 2005) with inner working angle IWA∼ 0.09′′, except for the July 2014 IRDIFS sequence for which IWA∼ 0.07′′.”