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14 September 2005 Adaptive nulling with a deformable mirror in the near-IR
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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