Meetings & Events
HCISA
Date:
May 4, 2016 - May 5, 2016High Contrast Imaging on Segmented Apertures Workshop
Direct imaging of habitable exoplanets around a significant sample of nearby stars and identification of life signatures on the best targets will require large aperture telescope(s) able to perform detailed spectroscopic characterization. Such (a) telescope(s) will almost certainly be segmented, and will be equipped with (a) high performance starlight suppression system(s). Centrally obscured and segmented apertures present unique challenges for coronagraphs and wave-front control systems.
| May 5, 2016 | Presenter | Start | Duration | End |
|---|---|---|---|---|
| Day 1 | ||||
| Scientific context: science and missions (invited) | Karl Stapelfeldt | 9:00 AM | 0:30 | 9:30 AM |
| Experience from WFIRST as a “segmented” aperture (chair: Guyon) | ||||
| Coronagraph design for segmented/centrally obscured apertures: WFIRST experience (invited) | Jeremy Kasdin | 9:30 AM | 0:30 | 10:00 AM |
| Evaluating coronagraph design performance with end-to-end modeling: WFIRST and beyond (invited) | John Krist | 10:00 AM | 0:30 | 10:30 AM |
| WFIRST LOWFS/C design and testbed results | Fang Shi | 10:30 AM | 0:20 | 10:50 AM |
| Coffee break | 10:50 AM | 0:10 | 11:00 AM | |
| Future segmented large space telescopes: overview and science yield (chair: Guyon) | ||||
| ATLAST and JWST Segmented Telescope Design Considerations | Lee Feinberg | 11:00 AM | 0:30 | 11:30 AM |
| HabEX & LUVOIR technology challenges | Nick Siegler | 11:30 AM | 0:30 | 12:00 PM |
| Maximized Yields for Coronagraphs and Starshades | Chris Stark | 12:00 PM | 0:20 | 12:20 PM |
| Consistent Analysis | Rhonda Morgan | 12:20 PM | 0:20 | 12:40 PM |
| Lunch | 12:40 PM | 0:50 | 1:30 PM | |
| Session 1: Coronagraph Designs for Segmented Apertures (chair: Shaklan) | ||||
| SCDA Overview and Apertures Apertures for Segmented Coronagraph Design and Analysis (SCDA) |
Stuart Shaklan | 1:30 PM | 0:20 | 1:50 PM |
| SCDA study updates | ||||
| APLC for Segmented Apertures | Neil Zimmerman | 1:50 PM | 0:30 | 2:20 PM |
| Vortex Coronagraphs for Segmented Apertures | Garreth Ruane | 2:20 PM | 0:30 | 2:50 PM |
| PIAA Coronagraphs for Segmented Apertures | Olivier Guyon | 2:50 PM | 0:30 | 3:20 PM |
| Linear Lyot Coronagraph Theory | J. Codona | 3:20 PM | 0:30 | 3:50 PM |
| Break | 3:50 PM | 0:10 | 4:00 PM | |
| Lab Tours | 4:00 PM | 1:30 | 5:30 PM | |
| May 6, 2016 | Presenter | Start | Duration | End |
|---|---|---|---|---|
| Day 2 | ||||
| New coronagraph concepts for segmented apertures (chair: Soummer) | ||||
| Theoretical performance trades between IWA, Contrast, and jitter sensitivity on segmented apertures | Rus Belikov | 8:30 AM | 0:20 | 8:50 AM |
| Play-doh coronagraph | Marc Kuchner | 8:50 AM | 0:20 | 9:10 AM |
| Session 2: Sensing and controlling co-phasing errors for high contrast imaging Telescope design, laser metrology, starlight sensing, optimized control, postprocessing | ||||
| Telescope design, hardware (chair: Traub) | ||||
| TMT design and cophasing (invited) | Mitch Troy | 9:10 AM | 0:30 | 9:40 AM |
| GMT design and cophasing (invited) | Antonin Bouchez | 9:40 AM | 0:30 | 10:10 AM |
| JWST performance & trades relevant to aperture & stability | Paul A. Lightsey | 10:10 AM | 0:20 | 10:30 AM |
| Sensitivity Analysis: Segment Rigid Body Motion vs Contrast Leakage | Phil Stahl | 10:30 AM | 0:20 | 10:50 PM |
| Coffee break | 10:50 AM | 0:10 | 11:00 AM | |
| Caltech High Contrast Spectroscopy for Segmented Telescopes Testbed | Dimitri Mawet | 11:10 AM | 0:20 | 11:30 AM |
| Large Active Silicon Carbide Mirrors | David Redding | 11:30 AM | 0:20 | 11:50 AM |
| Notional Telescope Design for 10 Meter LUVOIR Mission | Scott Knight | 11:50 AM | 0:20 | 12:10 PM |
| Segment manufacturing: edge figure, support (invited) | Gary Matthews | 12:10 PM | 0:30 | 12:40 PM |
| Lunch | 12:40 PM | 0:50 | 1:30 PM | |
| Polarization effects on large segmented apertures (invited) | Stuart Shaklan | 1:30 PM | 0:30 | 2:00 PM |
| Discussion: telescope design considerations for HCI | 2:00 PM | 0:30 | 2:30 PM | |
| Measuring and calibrating cophasing errors (chair: Soummer) | ||||
| Segment phasing with a Zernike WFS | Kent Wallace & Kathryn Jackson | 2:30 PM | 0:20 | 2:50 PM |
| Linear Dark Field Control for segmented apertures Implementation of Linear Dark Field Control at the UA Wavefront Control Lab |
Olivier Guyon & Kelsey Miller | 2:50 PM | 0:30 | 3:10 PM |
| Coffee break | 3:10 PM | 0:10 | 3:20 PM | |
| Aperture masking and kernel phases: extracting cophasing errors from science data | Mike Ireland | 3:20 PM | 0:20 | 3:40 PM |
| Discussion | 4:00 PM | 1:00 | 5:00 PM | |