Modeling polarization effects in nulling interferometers

Nicholas M. Elias II

doi:10.1117/12.506106

19 November 2003 Modeling polarization effects in nulling interferometers

Nicholas M. Elias II

Proceedings Volume 5170, Techniques and Instrumentation for Detection of Exoplanets; (2003) https://doi.org/10.1117/12.506106
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Polarization plays a significant role in nulling interferometry and should be considered early in the instrument design process. In this paper, I demonstrate that mirror trains with near-normal incidence angles increase the leakage into the central null more than other mirror trains for a given amount of misalignment perpendicular to the incidence plane. Also, throughput and polarization non-uniformity across a wave front will significantly increase the leakage. To simplify top-level modeling of this effect, I derive a "throughput/polarization" version of the Strehl ratio.

Citation Download Citation

Nicholas M. Elias II "Modeling polarization effects in nulling interferometers", Proc. SPIE 5170, Techniques and Instrumentation for Detection of Exoplanets, (19 November 2003); https://doi.org/10.1117/12.506106

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