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Subwavelength surface-relief gratings for stellar coronagraphy

Mawet, Dimitri and Riaud, Pierre and Surdej, Jean and Baudrand, Jacques (2005) Subwavelength surface-relief gratings for stellar coronagraphy. Applied Optics, 44 (34). pp. 7313-7321. ISSN 0003-6935. doi:10.1364/AO.44.007313.

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We present a new design of a phase mask coronagraph implemented with subwavelength diffractive optical elements consisting of optimized surface-relief gratings. Phase mask coronagraphy is a recent technique that seeks to accommodate both high dynamic and high angular resolution imaging of faint sources around bright astrophysical objects such as exoplanets orbiting their host stars. The original design we propose is a new, integrated, and flexible solution to the π phase-shift chromaticity of the phase mask coronagraphs. It will allow broadband observations, i.e., shorter integration times and object characterizations, by means of spectroscopic analysis. The feasibility of the component manufacturing is also considered through a tolerance study.

Item Type:Article
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URLURL TypeDescription
Mawet, Dimitri0000-0002-8895-4735
Surdej, Jean0000-0002-7005-1976
Additional Information:© 2005 Optical Society of America. Received 28 February 2005; revised manuscript received 23 June 2005; accepted 24 June 2005. D. Mawet acknowledges the financial support of the Belgian “Fonds pour la formation à la Recherche dans l’Industrie et dans l’Agriculture.” P. Riaud and J. Surdej acknowledge the financial support of the “Pôle d’Attraction Inter-Universitaire.”
Funding AgencyGrant Number
Fonds pour la Formation à la Recherche dans l’índustrie et dans l’Ágriculture (FRIA-Belgium)UNSPECIFIED
Pôle d’Attraction Inter-UniversitaireUNSPECIFIED
Issue or Number:34
Classification Code:OCIS codes: 220.4830, 050.5080
Record Number:CaltechAUTHORS:20150520-140705208
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Official Citation:Dimitri Mawet, Pierre Riaud, Jean Surdej, and Jacques Baudrand, "Subwavelength surface-relief gratings for stellar coronagraphy," Appl. Opt. 44, 7313-7321 (2005)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57719
Deposited By: Tony Diaz
Deposited On:20 May 2015 21:13
Last Modified:10 Nov 2021 21:54

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