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Fresnel rhombs as achromatic phase shifters for infrared nulling interferometry

Mawet, Dimitri and Hanot, Charles and Lenaerts, Cédric and Riaud, Pierre and Defrère, Denis and Vandormael, Denis and Loicq, Jérome and Fleury, Karl and Plesseria, Jean-Yves and Surdej, Jean and Habraken, Serge (2007) Fresnel rhombs as achromatic phase shifters for infrared nulling interferometry. Optics Express, 15 (20). pp. 12850-12865. ISSN 1094-4087. https://resolver.caltech.edu/CaltechAUTHORS:20150529-095936261

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Abstract

We propose a new family of achromatic phase shifters for infrared nulling interferometry. These key optical components can be seen as optimized Fresnel rhombs, using the total internal reflection phenomenon, modulated or not. The total internal reflection indeed comes with a phase shift between the polarization components of the incident light. We propose a solution to implement this vectorial phase shift between interferometer arms to provide the destructive interference process needed to disentangle highly contrasted objects from one another. We also show that, modulating the index transition at the total internal reflection interface allows compensating for the intrinsic material dispersion in order to make the subsequent phase shift achromatic over especially broad bands. The modulation can be induced by a thin film of a well-chosen material or a subwavelength grating whose structural parameters are thoroughly optimized. We present results from theoretical simulations together with preliminary fabrication outcomes and measurements for a prototype in Zinc Selenide.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1364/OE.15.012850DOIArticle
ORCID:
AuthorORCID
Mawet, Dimitri0000-0002-8895-4735
Defrère, Denis0000-0003-3499-2506
Surdej, Jean0000-0002-7005-1976
Additional Information:© 2007 Optical Society of America. Received 25 Jun 2007; revised 24 Aug 2007; accepted 25 Aug 2007; published 21 Sep 2007. The authors acknowledge the financial support of ESA.
Funders:
Funding AgencyGrant Number
European Space Agency (ESA)UNSPECIFIED
Issue or Number:20
Classification Code:OCIS codes: (120.3180) Interferometry; (050.5080) Phase Shift
Record Number:CaltechAUTHORS:20150529-095936261
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150529-095936261
Official Citation:Fresnel rhombs as achromatic phase shifters for infrared nulling interferometry Dimitri Mawet, Charles Hanot, Cédric Lenaers, Pierre Riaud, Denis Defrère, Denis Vandormael, Jérôme Loicq, Karl Fleury, Jean-Yves Plesseria, Jean Surdej, and Serge Habraken Opt. Express 15(20), 12850-12865 (2007)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57896
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:29 May 2015 17:45
Last Modified:29 Oct 2019 23:39

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