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dc.contributor.authorMarois, Christian
dc.contributor.authorGerard, B.
dc.contributor.authorLardière, O.
dc.contributor.authorAnthony, A.
dc.contributor.authorBradley, C.
dc.contributor.authorDunn, J.
dc.contributor.authorFu, Qiang
dc.contributor.authorHardy, T.
dc.contributor.authorHeidrich, Wolfgang
dc.contributor.authorHerriot, G.
dc.contributor.authorNielsen, E.
dc.contributor.authorSivanandam, S.
dc.contributor.authorSivransky, D.
dc.contributor.authorThibault, S.
dc.contributor.authorThompson, W.
dc.contributor.authorVéran, J. P.
dc.date.accessioned2021-02-22T06:34:16Z
dc.date.available2021-02-22T06:34:16Z
dc.date.issued2020-12-14
dc.identifier.citationMarois, C., Gerard, B. L., Lardière, O., Anthony, A., Bradley, C., Dunn, J., … Véran, J.-P. (2020). Upgrading the Gemini Planet Imager calibration unit with a photon counting focal plane wavefront sensor. Adaptive Optics Systems VII. doi:10.1117/12.2563010
dc.identifier.isbn9781510636835
dc.identifier.issn1996-756X
dc.identifier.issn0277-786X
dc.identifier.doi10.1117/12.2563010
dc.identifier.urihttp://hdl.handle.net/10754/667550
dc.description.abstractHigh-contrast imaging instruments have advanced techniques to improve contrast, but they remain limited by uncorrected stellar speckles, often lacking a "second stage"correction to complement the Adaptive Optics (AO) correction. We are implementing a new second stage speckle-correction solution for the Gemini Planet Imager (GPI), replacing the instrument calibration unit (CAL) with the Fast Atmospheric Self coherent camera Technique (FAST), a new version of the self-coherent camera (SCC) concept. Our proposed upgrade (CAL2.0) will use a common-path interferometer design to enable speckle correction, through post-processing and/or by a feedback loop to the AO deformable mirror. FAST utilizes a new type of coronagraphic mask that will enable, for the first time, speckle correction down to millisecond timescales. The system's main goal is to improve the contrast by up to 100x in a halfdark hole to enable a new regime of science discoveries. Our team has been developing this new technology at the NRC's Extreme Wavefront control for Exoplanet and Adaptive optics Research Topics (NEW EARTH) laboratory over the past several years. The GPI CAL2.0 update is funded (November 2020), and the system's first light is expected late 2023.
dc.description.sponsorshipThe authors thank the NRC Ideation Fund and CAL2.0 collaborators. We acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC). The authors wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the indigenous Hawaiian community.We are most fortunate to have the opportunity to conduct observations from this mountain.
dc.publisherSPIE-Intl Soc Optical Eng
dc.relation.urlhttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/11448/2563010/Upgrading-the-Gemini-Planet-Imager-calibration-unit-with-a-photon/10.1117/12.2563010.full
dc.rightsArchived with thanks to SPIE
dc.titleUpgrading the Gemini Planet Imager calibration unit with a photon counting focal plane wavefront sensor
dc.typeConference Paper
dc.typePoster
dc.contributor.departmentComputational Imaging Group
dc.contributor.departmentComputer Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentVisual Computing Center (VCC)
dc.conference.date2020-12-14 to 2020-12-22
dc.conference.nameAdaptive Optics Systems VII 2020
dc.conference.locationVirtual, Online, USA
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionNational Research Council of Canada Herzberg Astronomy and Astrophysics, 5071 W Saanich Rd, Victoria, BC V9E 2E7 Canada
dc.contributor.institutionUniversity of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2 Canada
dc.contributor.institutionUniversity of California Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
dc.contributor.institutionNew Mexico State University, P.O. Box 30001, MSC 4500, Las Cruces, NM 88003, USA
dc.contributor.institutionUniversity of Toronto, 27 King's College Circle, Toronto, ON M5S 1A1 Canada
dc.contributor.institutionCornell University, 616 Thurston Ave. Ithaca, NY 14853 USA;
dc.contributor.institutionUniversité Laval, 2325 Rue de l'Université, Québec, QC G1V 0A6 Canada
dc.identifier.volume11448
kaust.personFu, Qiang
kaust.personHeidrich, Wolfgang
dc.identifier.eid2-s2.0-85100046923
refterms.dateFOA2021-02-22T06:35:25Z


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