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Start Over Descriptor "Nulling" Publisher american institute of physics
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1. Coronagraph Methods on Precise Wavefront Compensation (UNI-PAC) and Deep Achromatic Nulling.

Author

Nishikawa, J., Yokochi, K., Murakami, N., Abe, L., Kotani, T., Tamura, M., Kurokawa, T., Tavrov, A. V., and Takeda, M.

Subjects
*CORONAGRAPHS, *HOLOGRAPHY, *STARS, *SIMULATION methods & models, *WAVELENGTHS
Abstract

We present our recent progress in the development of two novel coronagraphs: an eight-octant phase-mask (8OPM) coronagraph and a tandem common-path achromatic interfero-coronagraph (TCP-AIC). These methods have 4th-order responses to tip-tilt errors, and can realize deep stellar suppressions for partially resolved stars. We report principles, numerical simulations and laboratory demonstrations of the proposed methods. [ABSTRACT FROM AUTHOR]

Published
2009
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