Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Bradley J. Frey"'
Autor:
Sara Seager, C. Noecker, William C. Danchi, Tupper Hyde, J. Harrington, Bradley J. Frey, John D. Monnier, V. S. Johnson, W. A. Traub, Ronald J. Allen, Richard K. Barry, R. Linfield, J. Rajagopal, Anthony J. Martino, L. J. Richardson, L. D. Deming, Victor J. Chambers, Marc J. Kuchner, Lee G. Mundy, Rafael Millan-Gabet
Publikováno v:
Proceedings of the International Astronomical Union. 1:221-226
The Fourier-Kelvin Stellar Interferometer (FKSI) is a mission concept for a spacecraft- borne imaging and nulling interferometer for the near to mid-infrared spectral region. FKSI is a scientific and technological pathfinder to the Darwin and Terrest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d750c6799453f100e184ce98f9121bb6
https://doi.org/10.1017/s1743921306009355
https://doi.org/10.1017/s1743921306009355
Autor:
Douglas B. Leviton, Bradley J. Frey
Publikováno v:
SPIE Proceedings.
First, let's talk about the CHARMS facility at NASA's Goddard Space Flight Center: Cryogenic, High-Accuracy Refraction Measuring System (CHARMS); design features for highest accuracy and precision; technologies we rely on; data products and examples;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d67553968e52aa47bc6c2b5daed1981a
https://doi.org/10.1117/12.2024817
https://doi.org/10.1117/12.2024817
Publikováno v:
SPIE Proceedings.
Using NASA Goddard Space Flight Center’s Cryogenic High Accuracy Refraction Measuring System (CHARMS), we measured absolute refractive indices for three infrared glasses from Ohara for lens designs for instruments at two of the world’s largest, g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6b76da80230782fcadc410ed96e6ea1
https://doi.org/10.1117/12.2024821
https://doi.org/10.1117/12.2024821
Autor:
Kevin W. Redman, T. Scirpo, B. Hoffmann Eegholm, Joseph E. Hayden, Bradley J. Frey, J. Gill, M. Casas, Margaret Z. Dominguez, P. Morken, Babak Saif, V. Roberts, Raymond G. Ohl
Publikováno v:
SPIE Proceedings.
NASA's James Webb Space Telescope (JWST) will be a premier space science program for astrophysics following launch scheduled for 2014. JWST will observe the early universe, with emphasis on the time period during which the first stars and galaxies be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f575ebce8e906743a72289bbd0717be
https://doi.org/10.1117/12.831303
https://doi.org/10.1117/12.831303
Autor:
William L. Eichhorn, Pamela S. Davila, Joseph M. Stock, Kevin W. Redman, Joseph A. Connelly, Maria Nowak, James M. Marsh, Henry P. Sampler, Joe H. Sullivan, Gregory W. Wenzel, Derek Sabatke, Jason E. Hylan, Brent J. Bos, Philip Young, Geraldine A. Wright, Joseph McMann, Bradley J. Frey, John G. Hagopian, Raymond G. Ohl, Douglas B. McGuffey
Publikováno v:
Optical System Alignment and Tolerancing II.
The James Webb Space Telescope (JWST) is an infrared space telescope scheduled for launch in 2013. JWST has a 6.5 meter diameter deployable and segmented primary mirror, a deployable secondary mirror, and a deployable sun-shade. The optical train of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29c2295be417f7d88886c6024507be46
https://doi.org/10.1117/12.798778
https://doi.org/10.1117/12.798778
Autor:
Rob VonHandorf, Thai Pham, Douglas B. Leviton, David A. Kubalak, Qian Gong, Derek Sabatke, Richard N. Youngworth, Bill Chang, Adrian Nagle, Mario Garza, Pamela S. Davila, F. David Robinson, Claef Hakun, Bradford Greeley, William L. Eichhorn, Jeff Kirk, Jeff Guzek, Edward Cheng, Brent J. Bos, Rich Nyquist, Bradley J. Frey, Joseph F. Sullivan, Paul Volmer, Lars Hovmand
Publikováno v:
Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter.
The James Webb Space Telescope Observatory will consist of three flight elements: (1) the Optical Telescope Element (OTE), (2) the Integrated Science Instrument Module Element (ISIM), and (3) the Spacecraft Element. The ISIM element consists of a com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4acd1bb204e953a8353ed13168bde719
https://doi.org/10.1117/12.790402
https://doi.org/10.1117/12.790402
Autor:
Douglas B. Leviton, Bradley J. Frey
Using the Cryogenic, High-Accuracy Refraction Measuring System (CHARMS) at NASA's Goddard Space Flight Center, we have measured the absolute refractive index of five specimens taken from a very large boule of Corning 7980 fused silica from temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22499dc4e94d2f6e5626ed84f3d1a057
http://arxiv.org/abs/0805.0091
http://arxiv.org/abs/0805.0091
The refractive optical design of the James Webb Space Telescope (JWST) Near Infrared Camera (NIRCam) uses three infrared materials in its lenses: LiF, BaF2, and ZnSe. In order to provide the instrument's optical designers with accurate, heretofore un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f5691dc34e74cd662a901383a9392a6
Publikováno v:
SPIE Proceedings.
In order to enable high quality lens designs using calcium fluoride (CaF2) and Heraeus Infrasil 301 (Infrasil) for cryogenic operating temperatures, we have measured the absolute refractive index of these two materials as a function of both wavelengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79644b37aba500589576e590e0a1f09d
https://doi.org/10.1117/12.735594
https://doi.org/10.1117/12.735594
Autor:
Stephen A. Rinehart, Stephen F. Maher, John Jung, Thomas A. Pauls, David Leisawitz, Thomas Armstrong, Bradley J. Frey, Douglas B. Leviton, Anthony J. Martino, Jeff Kirk, Richard G. Lyon
Publikováno v:
SPIE Proceedings.
The Wide-Field Imaging Interferometry Testbed (WIIT) was designed to develop techniques for wide-field of view imaging interferometry, using "double-Fourier" methods. These techniques will be important for a wide range of future space-based interfero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d41cad7ad60f9072b07cb2b727ea7db
https://doi.org/10.1117/12.734437
https://doi.org/10.1117/12.734437