Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Ferrari, Marc"'
Publikováno v:
Proc. SPIE 13094, 130944J (2024)
MISTRAL is a visible and near infrared imager and spectrograph working with the $1.93m$ telescope at L'Observatoire de Haute-Provence. The goal of the present project is to design and build one custom lens covering the entire working band 370-1000 nm
Externí odkaz:
http://arxiv.org/abs/2410.01414
Autor:
Soummer, Rémi, Por, Emiel H., Pourcelot, Raphaël, Redmond, Susan, Laginja, Iva, Will, Scott D., Perrin, Marshall D., Pueyo, Laurent, Sahoo, Ananya, Petrone, Peter, Brooks, Keira J., Fox, Rachel, Klein, Alex, Nickson, Bryony, Comeau, Thomas, Ferrari, Marc, Gontrum, Rob, Hagopian, John, Leboulleux, Lucie, Leongomez, Dan, Lugten, Joe, Mugnier, Laurent M., N'Diaye, Mamadou, Nguyen, Meiji, Noss, James, Sauvage, Jean-François, Scott, Nathan, Sivaramakrishnan, Anand, Subedi, Hari B., Weinstock, Sam
We present recent laboratory results demonstrating high-contrast coronagraphy for the future space-based large IR/Optical/Ultraviolet telescope recommended by the Decadal Survey. The High-contrast Imager for Complex Aperture Telescopes (HiCAT) testbe
Externí odkaz:
http://arxiv.org/abs/2409.13026
Autor:
Soummer, Rémi, Pourcelot, Raphaël, Por, Emiel H., Steiger, Sarah, Laginja, Iva, Buralli, Benjamin, Redmond, Susan, Pueyo, Laurent, Perrin, Marshall D., Ferrari, Marc, Fowler, Jules, Hagopian, John, N'Diaye, Mamadou, Nguyen, Meiji, Nickson, Bryony, Petrone, Peter, Sahoo, Ananya, Sivaramakrishnan, Anand, Will, Scott D.
We present the final results of the Apodized Pupil Lyot Coronagraph (APLC) on the High-contrast imager for Complex Aperture Telescopes (HiCAT) testbed, under NASA's Strategic Astrophysics Technology program. The HiCAT testbed was developed over the p
Externí odkaz:
http://arxiv.org/abs/2409.12931
Autor:
Schwartz, Noah, Milanova, Maria, Brzozowski, William, Todd, Stephen, Ali, Zeshan, Buron, Lucie, Jean-François-Sauvage, Bond, Charlotte, Bruce, Heather, Rees, Phil, Ferrari, Marc, MacLeod, Donald
Publikováno v:
Proceedings of 13th IAA Symposium on Small Satellites for Earth Observation (SSSEO 2021)
The volume available on small satellites restricts the size of optical apertures to a few centimetres, limiting the Ground-Sampling Distance (GSD) in the visible to typically 3 m at 500 km. We present in this paper the latest development of a laborat
Externí odkaz:
http://arxiv.org/abs/2105.12483
Autor:
Roulet, Melanie, Atkins, Carolyn, Hugot, Emmanuel, Lemared, Sabri, Lombardo, Simona, Ferrari, Marc
Publikováno v:
Proceedings Volume 10675, 3D Printed Optics and Additive Photonic Manufacturing; 1067504 (2018)
3D printing, also called additive manufacturing, offers a new vision for optical fabrication in term of achievable optical quality and reduction of weight and cost. In this paper we describe two different ways to use this technique in the fabrication
Externí odkaz:
http://arxiv.org/abs/2011.01000
Autor:
Roulet, Melanie, Hugot, Emmanuel, Atkins, Carolyn, Lemared, Sabri, Lombardo, Simona, Ferrari, Marc
Publikováno v:
Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 106982Q (2018)
Exoplanet imaging requires super polished off-axis parabolas (OAP) with the utmost surface quality. In this paper we describe an innovative manufacturing process combining 3D printing and stress polishing, to create a warping harness capable of produ
Externí odkaz:
http://arxiv.org/abs/2011.00893
Autor:
Burgarella, Denis, Bunker, Andrew, Bouwens, Rychard, Pagani, Laurent, Afonso, Jose, Atek, Hakim, Audard, Marc, Cabrit, Sylvie, Caputi, Karina, Ciesla, Laure, Conselice, Christopher, Cooray, Asantha, Cresci, Giovanni, Curti, Mirko, Espinosa, Jose Miguel Rodriguez, Ferrari, Marc, Kobayashi, Chiaki, Lagarde, Nadege, Maestro, Jesus Gallego, Maiolino, Roberto, Malek, Katarzyna, Mannucci, Filippo, Montillaud, Julien, Oesch, Pascal, Pearson, Chris, Pollo, Agnieszka, Reyle, Céline, Rosario, David, Sakon, Itsuki, Schaerer, Daniel, Sharples, Ray, Sobral, David, Zamkotsian, Frederic
We propose a new mission called Space Project for Astrophysical and Cosmological Exploration (SPACE) as part on the ESA long term planning Voyage 2050 programme. SPACE will study galaxy evolution at the earliest times, with the key goals of charting
Externí odkaz:
http://arxiv.org/abs/2007.14869
Autor:
Lemared, Sabri, Ferrari, Marc, Jeu, Christian Du, Dufour, Thibault, Soulier, Nathalie, Hugot, Emmanuel
This study proposes a new way to manufacture large lightweight aspherics for space telescopes using Stress Mirror Polishing (SMP). This technique is well known to allow reaching high quality optical surfaces in a minimum time period, thanks to a sphe
Externí odkaz:
http://arxiv.org/abs/2004.09361
Autor:
Bailey, Vanessa P., Armus, Lee, Balasubramanian, Bala, Baudoz, Pierre, Bellini, Andrea, Benford, Dominic, Berriman, Bruce, Bhattacharya, Aparna, Boccaletti, Anthony, Cady, Eric, Novati, Sebastiano Calchi, Carpenter, Kenneth, Ciardi, David, Crill, Brendan, Danchi, William, Debes, John, Demers, Richard, Dohlen, Kjetil, Effinger, Robert, Ferrari, Marc, Frerking, Margaret, Gelino, Dawn, Girard, Julien, Grady, Kevin, Groff, Tyler, Harding, Leon, Helou, George, Henning, Avenhaus, Janson, Markus, Kalirai, Jason, Kane, Stephen, Kasdin, N. Jeremy, Kenworthy, Matthew, Kern, Brian, Krist, John, Kruk, Jeffrey, Lagrange, Anne Marie, Laine, Seppo, Langlois, Maud, Coroller, Herve Le, Lindensmith, Chris, Lowrance, Patrick, Maire, Anne-Lise, Malhotra, Sangeeta, Mandell, Avi, McElwain, Michael, Prada, Camilo Mejia, Mennesson, Bertrand, Meshkat, Tiffany, Moody, Dwight, Morrissey, Patrick, Moustakas, Leonidas, N'Diaye, Mamadou, Nemati, Bijan, Noecker, Charley, Paladini, Roberta, Perrin, Marshall, Poberezhskiy, Ilya, Postman, Marc, Pueyo, Laurent, Ramirez, Solange, Ranc, Clement, Rhodes, Jason, Riggs, A. J. E., Rizzo, Maxime, Roberge, Aki, Rouan, Daniel, Schlieder, Joshua, Seo, Byoung-Joon, Shaklan, Stuart, Shi, Fang, Soummer, Remi, Spergel, David, Stapelfeldt, Karl, Stark, Christopher, Tamura, Motohide, Tang, Hong, Trauger, John, Turnbull, Margaret, van der Marel, Roeland, Vigan, Arthur, Williams, Benjamin, Wollack, Edward J., Ygouf, Marie, Zhao, Feng, Zhoud, Hanying, Zimmerman, Neil
The Wide Field Infrared Survey Telescope (WFIRST) Coronagraph Instrument (CGI) is a high-contrast imager and integral field spectrograph that will enable the study of exoplanets and circumstellar disks at visible wavelengths. Ground-based high-contra
Externí odkaz:
http://arxiv.org/abs/1901.04050
Autor:
Muslimov, Eduard R., Ferrari, Marc, Hugot, Emmanuel, Bouret, Jean-Claude, Neiner, Coralie, Lombardo, Simona, Lemaitre, Gerard, Grange, Robert, Guskov, Ilya A.
Publikováno v:
Opt. Eng. 57(12), 125105 (2018)
In the present paper we demonstrate the approach of using a holographic grating on a freeform surface for advanced spectrographs design. We discuss the surface and groove pattern description used for ray-tracing. Moreover, we present a general proced
Externí odkaz:
http://arxiv.org/abs/1812.10484