Adaptive nulling for the Terrestrial Planet Finder Interferometer

Robert D. Peters; Oliver P. Lay; Akiko Hirai; Muthu Jeganathan

doi:10.1117/12.672170

28 June 2006 Adaptive nulling for the Terrestrial Planet Finder Interferometer

Robert D. Peters, Oliver P. Lay, Akiko Hirai, Muthu Jeganathan

Proceedings Volume 6268, Advances in Stellar Interferometry; 62681C (2006) https://doi.org/10.1117/12.672170
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Deep, stable starlight nulls are needed for the direct detection of Earth-like planets and require careful control of the intensity and phases of the beams that are being combined. We are testing a novel compensator based on a deformable mirror to correct the intensity and phase at each wavelength and polarization across the nulling bandwidth. We have successfully demonstrated intensity and phase control using a deformable mirror across a 100nm wide band in the near-IR, and are in the process of conducting experiments in the mid-IR wavelengths. This paper covers the current results and in the mid-IR.

Citation Download Citation

Robert D. Peters, Oliver P. Lay, Akiko Hirai, and Muthu Jeganathan "Adaptive nulling for the Terrestrial Planet Finder Interferometer", Proc. SPIE 6268, Advances in Stellar Interferometry, 62681C (28 June 2006); https://doi.org/10.1117/12.672170

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