| DOI | Resolve DOI: https://doi.org/10.1117/12.2677478 |
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| Author | Search for: Li, Duan; Search for: Thompson, William1ORCID identifier: https://orcid.org/0000-0001-5684-4593; Search for: Savransky, Dmitry; Search for: Marois, Christian1ORCID identifier: https://orcid.org/0000-0002-4164-4182 |
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| Affiliation | - National Research Council Canada. Herzberg Astronomy and Astrophysics
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| Format | Text, Article |
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| Conference | Techniques and Instrumentation for Detection of Exoplanets XI, August 20-25, 2023, San Diego, United States |
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| Subject | high contrast imaging; direct imaging; adaptive optics; wavefront control |
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| Abstract | The Gemini Planet Imager’s performance was limited by speckle noise from post-coronagraph aberrations and internal optical imperfections. As part of the GPI 2.0 calibration unit upgrade, we demonstrate closed loop focal plane wavefront sensing and control techniques to enable higher contrast and smaller inner working angles. We present the experimental results of the classical speckle nulling method on a self-coherent camera, with contrast improvement by up to a factor of 3.2. |
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| Publication date | 2023-08-20 |
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| Publisher | SPIE |
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| In | |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 4aaaec67-7108-4889-b65b-1765415d5e1a |
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| Record created | 2024-07-22 |
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| Record modified | 2024-07-22 |
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