Adaptive nulling with a deformable mirror in the near-IR

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

doi:10.1117/12.615463

14 September 2005 Adaptive nulling with a deformable mirror in the near-IR

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

Proceedings Volume 5905, Techniques and Instrumentation for Detection of Exoplanets II; 590507 (2005) https://doi.org/10.1117/12.615463
Event: Optics and Photonics 2005, 2005, San Diego, California, 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 building the phase 2 experiment operating at mid-IR wavelengths. This paper covers the results of our demonstration in the near-IR, as well as our current progress in the mid-IR.

Citation Download Citation

Robert D. Peters, Akiko Hirai, Muthu Jeganathan, and Oliver P. Lay "Adaptive nulling with a deformable mirror in the near-IR", Proc. SPIE 5905, Techniques and Instrumentation for Detection of Exoplanets II, 590507 (14 September 2005); https://doi.org/10.1117/12.615463

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