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| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.11114 |
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| _version_ | 1866915447407902720 |
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| author | Gerard, Benjamin L. Sanchez, Dominic F. Sengupta, Aditya R. Fernandez, Bautista R. Laguna, Cesar Ratliff, Christopher Dillon, Daren Cetre, Sylvain Tucker, David Kim, Mike Poyneer, Lisa Bauman, Brian Gates, Elinor Savage, Maureen Jensen-Clem, Rebecca Ammons, S. Mark Hinz, Phil Macintosh, Bruce |
| author_facet | Gerard, Benjamin L. Sanchez, Dominic F. Sengupta, Aditya R. Fernandez, Bautista R. Laguna, Cesar Ratliff, Christopher Dillon, Daren Cetre, Sylvain Tucker, David Kim, Mike Poyneer, Lisa Bauman, Brian Gates, Elinor Savage, Maureen Jensen-Clem, Rebecca Ammons, S. Mark Hinz, Phil Macintosh, Bruce |
| contents | LLNL has recently setup a High Contrast Testbed (HCT) for AO and exoplanet imaging technology development. We present the various HCT technologies currently under development, including (1) a Wynne corrector, (2) multi-wavefront sensor (WFS) single conjugate AO (SCAO) control. We present HCT testing results of a first Wynne corrector prototype with a self-coherent camera. We present updates on development efforts to design and apply multi-WFS SCAO control to our HCT setup. We also present ongoing HCT deformable mirror and WFS upgrades. Lastly, we present developments for REDWOODS, a project to deploy many of these technologies on-sky on a sub-bench of the Shane AO system at Lick Observatory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_11114 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Developments on LLNL's high contrast testbed and Lick/ShaneAO Gerard, Benjamin L. Sanchez, Dominic F. Sengupta, Aditya R. Fernandez, Bautista R. Laguna, Cesar Ratliff, Christopher Dillon, Daren Cetre, Sylvain Tucker, David Kim, Mike Poyneer, Lisa Bauman, Brian Gates, Elinor Savage, Maureen Jensen-Clem, Rebecca Ammons, S. Mark Hinz, Phil Macintosh, Bruce Instrumentation and Methods for Astrophysics LLNL has recently setup a High Contrast Testbed (HCT) for AO and exoplanet imaging technology development. We present the various HCT technologies currently under development, including (1) a Wynne corrector, (2) multi-wavefront sensor (WFS) single conjugate AO (SCAO) control. We present HCT testing results of a first Wynne corrector prototype with a self-coherent camera. We present updates on development efforts to design and apply multi-WFS SCAO control to our HCT setup. We also present ongoing HCT deformable mirror and WFS upgrades. Lastly, we present developments for REDWOODS, a project to deploy many of these technologies on-sky on a sub-bench of the Shane AO system at Lick Observatory. |
| title | Developments on LLNL's high contrast testbed and Lick/ShaneAO |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2508.11114 |