Jayke S. Nguyen, J. Maire, S. Perera, Daniel M. Levinstein, C. Do Ó, Q. Konopacky, J. Chilcote, J. Fitzsimmons, R. Hamper, D. Kerley, B. Macintosh, C. Marois, F. Rantakyrö, D. Savransky, J. Véran, G. Agapito, S. Ammons, M. Bonaglia, M. Boucher, J. Dunn, S. Esposito, G. Filion, J. Landry, O. Lardière, Duan Li, A. Madurowicz, M. Nguyen, B. Nickson, Dillon H. Peng, E. Por, L. Poyneer, R. Soummer
{"title":"GPI 2.0: End-to-end simulations of the AO-coronagraph system","authors":"Jayke S. Nguyen, J. Maire, S. Perera, Daniel M. Levinstein, C. Do Ó, Q. Konopacky, J. Chilcote, J. Fitzsimmons, R. Hamper, D. Kerley, B. Macintosh, C. Marois, F. Rantakyrö, D. Savransky, J. Véran, G. Agapito, S. Ammons, M. Bonaglia, M. Boucher, J. Dunn, S. Esposito, G. Filion, J. Landry, O. Lardière, Duan Li, A. Madurowicz, M. Nguyen, B. Nickson, Dillon H. Peng, E. Por, L. Poyneer, R. Soummer","doi":"10.1117/12.2630446","DOIUrl":"https://doi.org/10.1117/12.2630446","url":null,"abstract":"","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114177862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Correia, J. Sauvage, S. Oberti, B. Neichel, T. Fusco, C. Bond, V. Chambouleyron, N. Levraud, N. Schwartz, M. Feldt, T. Bertram
{"title":"Super-resolution wavefront reconstruction in adaptive-optics with pyramid sensors","authors":"C. Correia, J. Sauvage, S. Oberti, B. Neichel, T. Fusco, C. Bond, V. Chambouleyron, N. Levraud, N. Schwartz, M. Feldt, T. Bertram","doi":"10.1117/12.2632753","DOIUrl":"https://doi.org/10.1117/12.2632753","url":null,"abstract":"","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134383854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
'O ClarissaR.Do, S. Perera, J. Maire, Jayke S. Nguyen, Vincent Chambouleyron, Q. Konopacky, J. Chilcote, J. Fitzsimmons, R. Hamper, D. Kerley, B. Macintosh, C. Marois, F. Rantakyro, Dmitry Savranksy, J. Véran, G. Agapito, S. Ammons, M. Bonaglia, M. Boucher, J. Dunn, S. Esposito, G. Filion, J. Landry, O. Lardière, Duan Li, A. Madurowicz, Dillon H. Peng, L. Poyneer, E. Spalding
{"title":"GPI 2.0: performance evaluation of the wavefront sensor’s EMCCD","authors":"'O ClarissaR.Do, S. Perera, J. Maire, Jayke S. Nguyen, Vincent Chambouleyron, Q. Konopacky, J. Chilcote, J. Fitzsimmons, R. Hamper, D. Kerley, B. Macintosh, C. Marois, F. Rantakyro, Dmitry Savranksy, J. Véran, G. Agapito, S. Ammons, M. Bonaglia, M. Boucher, J. Dunn, S. Esposito, G. Filion, J. Landry, O. Lardière, Duan Li, A. Madurowicz, Dillon H. Peng, L. Poyneer, E. Spalding","doi":"10.1117/12.2629094","DOIUrl":"https://doi.org/10.1117/12.2629094","url":null,"abstract":"The Gemini Planet Imager (GPI) is a high contrast imaging instrument that aims to detect and characterize extrasolar planets. GPI is being upgraded to GPI 2.0, with several subsystems receiving a re-design to improve the instrument's contrast. To enable observations on fainter targets and increase stability on brighter ones, one of the upgrades is to the adaptive optics system. The current Shack-Hartmann wavefront sensor (WFS) is being replaced by a pyramid WFS with an low-noise electron multiplying CCD (EMCCD). EMCCDs are detectors capable of counting single photon events at high speed and high sensitivity. In this work, we characterize the performance of the HN\"u 240 EMCCD from N\"uv\"u Cameras, which was custom-built for GPI 2.0. The HN\"u 240 EMCCD's characteristics make it well suited for extreme AO: it has low dark current ($<$ 0.01 e-/pix/fr), low readout noise (0.1 e-/pix/fr at a gain of 5000), high quantum efficiency ( 90% at wavelengths from 600-800 nm; 70% from 800-900 nm), and fast readout (up to 3000 fps full frame). Here we present test results on the EMCCD's noise contributors, such as the readout noise, pixel-to-pixel variability and CCD bias. We also tested the linearity and EM gain calibration of the detector. All camera tests were conducted before its integration into the GPI 2.0 PWFS system.","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128638864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Ono, Y. Minowa, Yoko Tanaka, N. Martínez Rey, N. Herrald, C. d’Orgeville, F. Rigaut, Israel J. Vaughn, D. Chandler, K. Terao
{"title":"ULTIMATE-Subaru : Requirement analysis of the WFS system for GLAO","authors":"Y. Ono, Y. Minowa, Yoko Tanaka, N. Martínez Rey, N. Herrald, C. d’Orgeville, F. Rigaut, Israel J. Vaughn, D. Chandler, K. Terao","doi":"10.1117/12.2628836","DOIUrl":"https://doi.org/10.1117/12.2628836","url":null,"abstract":"","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125207350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Wagner, Simon Hubmer, J. Niebsch, R. Ramlau, B. Stadler
{"title":"Off-axis PSF reconstruction for SCAO and MCAO systems","authors":"R. Wagner, Simon Hubmer, J. Niebsch, R. Ramlau, B. Stadler","doi":"10.1117/12.2629294","DOIUrl":"https://doi.org/10.1117/12.2629294","url":null,"abstract":"","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116296396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Frazin, A. Hedglen, A. Rodack, J. Males, L. Close, O. Guyon
{"title":"The cumulative effect of low-order aberrations in the MagAO-X science path","authors":"R. Frazin, A. Hedglen, A. Rodack, J. Males, L. Close, O. Guyon","doi":"10.1117/12.2629438","DOIUrl":"https://doi.org/10.1117/12.2629438","url":null,"abstract":"","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125389245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Engler, M. Kasper, P. Bristow, C. Heritier, S. Leveratto, C. Vérinaud, M. Le Louarn, J. Nousiainen, T. Helin, M. Bonse, S. Quanz, A. Glauser, J. Bernard, D. Gratadour, R. Clare
{"title":"GPU-based High-order adaptive OpticS Testbench","authors":"B. Engler, M. Kasper, P. Bristow, C. Heritier, S. Leveratto, C. Vérinaud, M. Le Louarn, J. Nousiainen, T. Helin, M. Bonse, S. Quanz, A. Glauser, J. Bernard, D. Gratadour, R. Clare","doi":"10.1117/12.2630595","DOIUrl":"https://doi.org/10.1117/12.2630595","url":null,"abstract":"","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125881845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Precision speckle pattern reconstruction for high contrast imaging","authors":"Dotan Gazith, B. Zackay","doi":"10.1117/12.2629830","DOIUrl":"https://doi.org/10.1117/12.2629830","url":null,"abstract":"In High Contrast Imaging, a large instrumental, technological and algorithmic effort is made to reduce residual speckle noise and improve the detection capabilities. In this work, we explore the potential of using a precise physical description of speckle images, in conjunction with the optimal detection statistic to perform High Contrast Imaging. Our method uses short-exposure speckle images, reconstructing the Point Spread Function (PSF) of each image with phase retrieval algorithms. Using the reconstructed PSF's we calculate the optimal detection statistic for all images. We analyze the arising bias due to the use of a reconstructed PSF and correct for it completely up to its accumulation over $10^4$ images. We measure in simulations the method's sensitivity loss due to overfitting in the reconstruction process and get to an estimated 5$sigma$ detection limit of $5times 10^{-7}$ flux ratio at angular separations of $0.1 -0.5^{primeprime}$ for a $1h$ observation of Sirius A with a 2m-telescope.","PeriodicalId":424033,"journal":{"name":"Adaptive Optics Systems VIII","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131760295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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