Zobrazeno 1 - 10
of 28
pro vyhledávání: '"B. Martin Levine"'
Publikováno v:
Optics Continuum. 1:1603
We designed and built a novel model of a deployed space telescope which can reliably align its segments to achieve the finest possible resolution. An asymmetric design of both the segment shapes and their pupil locations were tested in simulation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c4d14fc4e423db9e644cfe5d9016af9
https://doi.org/10.1364/optcon.462667
https://doi.org/10.1364/optcon.462667
Autor:
Alon Osovizky, Reuven Abramov, N. Lupu, Avner Kaidar, B. Martin Levine, Ehud Behar, Amir Feigenboim, Shlomit Tarem, Lee Yacobi, Alex Vdovin, Jordan Camp, Roi Rahin
Publikováno v:
Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray.
ISS-TAO is a mission selected for a concept study by NASA, and proposed by GSFC for launch to the International Space Station (ISS) in order to observe transient high-energy astrophysical sources. It is composed of an X-ray Wide-Field Imager (WFI), a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9d3c53168e228e5e9b1108fe816b9a6
https://doi.org/10.1117/12.2316347
https://doi.org/10.1117/12.2316347
Autor:
Erez N. Ribak, B. Martin Levine
Publikováno v:
Frontiers in Optics / Laser Science.
We wish to phase a segmented and sparse telescope in space, employing only wide-band light from an extended object. A stochastic search for the sharpest image lasts up to one day, for a four-segment telescope.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8152b51b16d30560944d593bc98db4ba
https://doi.org/10.1364/fio.2018.jtu3a.25
https://doi.org/10.1364/fio.2018.jtu3a.25
Design and development of a 331-segment tip–tilt–piston mirror array for space-based adaptive optics
Autor:
Steven Cornelissen, Timothy A. Cook, Jason B. Stewart, Paul Bierden, B. Martin Levine, Thomas G. Bifano
Publikováno v:
Sensors and Actuators A: Physical. 138:230-238
We report on the development of a micromachined silicon deformable mirror (DM) system for the hyper-contrast visible nulling coronagraph architecture designed by the Jet Propulsion Laboratory for NASA's Terrestrial Planet Finding (TPF) mission. The n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04093f971c7388ba1bc31fe3c63a7c13
https://doi.org/10.1016/j.sna.2007.04.051
https://doi.org/10.1016/j.sna.2007.04.051
Publikováno v:
Proceedings of the International Astronomical Union. 1:353-360
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5f0d7de57791c0a6e3fa3a3abd2c519
https://doi.org/10.1017/s1743921306009586
https://doi.org/10.1017/s1743921306009586
Autor:
Christopher B. Mendillo, Brian A. Hicks, Timothy A. Cook, Thomas G. Bifano, David A. Content, Benjamin F. Lane, B. Martin Levine, Douglas Rabin, Shanti R. Rao, Rocco Samuele, Edouard Schmidtlin, Michael Shao, J. Kent Wallace, Supriya Chakrabarti
Publikováno v:
Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave.
The Planetary Imaging Concept Testbed Using a Rocket Experiment (PICTURE 36.225 UG) was designed to directly image the exozodiacal dust disk of ǫ Eridani (K2V, 3.22 pc) down to an inner radius of 1.5 AU. PICTURE carried four key enabling technologie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::905a47fbc35cfe0f3d5710a528c7d60d
https://doi.org/10.1117/12.926408
https://doi.org/10.1117/12.926408
Autor:
Michael Shao, Richard G. Lyon, Keith Havey, Gopal Vasudevan, Jun Acu, B. Martin Levine, Jeff Wynn, Robert A. Woodruff
Publikováno v:
SPIE Proceedings.
This paper presents the optical design of the Dilute Aperture Visible Nulling Coronagraph Imaging (DAViNCI). DAViNCI's dilute aperture approach to the TPF-C extra-solar earth-like detection mission reduces cost and technical risk compared to other fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::531f24626b2b7af14950a9d32eea083e
https://doi.org/10.1117/12.857711
https://doi.org/10.1117/12.857711
Publikováno v:
SPIE Proceedings.
Embedding solid-state ceramic actuators in a bending style deformable mirror presents unique athermalization challenges when operated at cryogenic temperatures. Approaches to athermally embed actuators in a substrate are presented in this study. Each
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f48827649b3e511abba1f38367d6e41a
https://doi.org/10.1117/12.826650
https://doi.org/10.1117/12.826650
Autor:
Gautam Vasisht, Jeffrey Wynn, Mark Clampin, Gopal Vasudevan, M. Shao, Olivier Guyon, Sarah Bairstow, B. Martin Levine, Benjamin F. Lane, Robert A. Woodruff, Rocco Samuele, Richard G. Lyon
Publikováno v:
SPIE Proceedings.
DAVINCI is a dilute aperture nulling coronagraph that has the potential of directly detecting an Earth in the habitable zone around ~100 nearby stars. The novel feature of this mission concept is to replace a filled aperture 5-6 meter telescope with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c1defbc71474a877b7b64504d2922a7
https://doi.org/10.1117/12.789767
https://doi.org/10.1117/12.789767
Autor:
Bijan Nemati, Michael Shao, Felipe Fregoso, John Angione, Chris Shelton, J. Kent Wallace, Rick Burruss, B. Martin Levine, Randall D. Bartos, Paul Best
Publikováno v:
SPIE Proceedings.
The calibration wavefront system for the Gemini Planet Imager (GPI) will measure the complex wavefront at the apodized pupil and provide slow phase errors to the AO system to mitigate against image plane speckles that would cause a loss in contrast.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3005c07e68ee781ae6f92e942cf81e9
https://doi.org/10.1117/12.787258
https://doi.org/10.1117/12.787258