Nulling interferometry without achromatic phase shifters: latest results

Julien Spronck; Silvania F. Pereira; Joseph J. M. Braat

doi:10.1117/12.670303

28 June 2006 Nulling interferometry without achromatic phase shifters: latest results

Julien Spronck, Silvania F. Pereira, Joseph J. M. Braat

Proceedings Volume 6268, Advances in Stellar Interferometry; 626832 (2006) https://doi.org/10.1117/12.670303
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

We discuss the previously-reported measurements of a three-beam nulling interferometer without achromatic phase-shifters, using delay lines only. The theoretical rejection ratio of a few thousand has not been achieved experimentally. In order to explain the obtained results, some direct spectral and polarization measurements have been performed. We present here the latest results and discuss some asymmetries in the interference patterns.

Citation Download Citation

Julien Spronck, Silvania F. Pereira, and Joseph J. M. Braat "Nulling interferometry without achromatic phase shifters: latest results", Proc. SPIE 6268, Advances in Stellar Interferometry, 626832 (28 June 2006); https://doi.org/10.1117/12.670303

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