CaltechAUTHORS
  A Caltech Library Service

Fresnel Rhombs as Achromatic Phase Shifters for Infrared Nulling Interferometry: First experimental results

Hanot, C. and Mawet, D. and Loicq, J. and Vandormael, D. and Plesseria, J. Y. and Surdej, J. and Habraken, S. (2007) Fresnel Rhombs as Achromatic Phase Shifters for Infrared Nulling Interferometry: First experimental results. In: Techniques and Instrumentation for Detection of Exoplanets Ill. Proceedings of SPIE. No.6693. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 66931L. ISBN 9780819468413 . https://resolver.caltech.edu/CaltechAUTHORS:20150527-090016715

[img] PDF - Published Version
See Usage Policy.

783Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20150527-090016715

Abstract

One of the most critical units of nulling interferometers is the Achromatic Phase Shifter. The concept we propose here is based on optimized Fresnel rhombs, using the total internal reflection phenomenon, modulated or not. The total internal reflection induces a phase shift between the polarization components of the incident light. We present the principles, the current status of the prototype manufacturing and testing operations, as well as preliminary experiments on a ZnSe Fresnel rhomb in the visible that have led to a first error source assessment study. Thanks to these first experimental results using a simple polarimeter arrangement, we have identified the bulk scattering as being the main error source. Fortunately, we have experimentally verified that the scattering can be mitigated using spatial filters and does not decrease the phase shifting capabilities of the ZnSe Fresnel rhomb.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.758405DOIArticle
ORCID:
AuthorORCID
Mawet, D.0000-0002-8895-4735
Surdej, J.0000-0002-7005-1976
Additional Information:© 2007 Society of Photo-Optical Instrumentation Engineers (SPIE). September 19, 2007. The authors acknowledge the financial support of ESA and of the Euro Space Society.
Funders:
Funding AgencyGrant Number
European Space Agency (ESA)UNSPECIFIED
Euro Space SocietyUNSPECIFIED
Subject Keywords:Fresnel Rhomb, Achromatic Phase Shifters, nulling interferometry, subwavelength gratings, Zinc Selenide, bulk scattering
Series Name:Proceedings of SPIE
Issue or Number:6693
Record Number:CaltechAUTHORS:20150527-090016715
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150527-090016715
Official Citation:C. Hanot ; D. Mawet ; J. Loicq ; D. Vandormael ; J. Y. Plesseria, et al. "Fresnel rhombs as achromatic phase shifters for infrared nulling interferometry: first experimental results", Proc. SPIE 6693, Techniques and Instrumentation for Detection of Exoplanets III, 66931L (September 19, 2007); doi:10.1117/12.758405
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57846
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:27 May 2015 18:12
Last Modified:29 Oct 2019 23:39

Repository Staff Only: item control page