Zobrazeno 1 - 10
of 103
pro vyhledávání: '"J. P. Lehan"'
Publikováno v:
Journal of Applied Physics. 92:3608-3614
The optical response of an amorphous tungsten oxide half cell upon varying degrees of protenation is examined. First, the indium tin oxide transparent conductor’s dielectric function is determined from a parameterized version of the ionized impurit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc9844ef65bffbb25c58629023696ce9
https://doi.org/10.1063/1.1505676
https://doi.org/10.1063/1.1505676
Publikováno v:
SPIE Proceedings.
The Wide Field Infrared Survey Telescope (WFIRST) mission concept was ranked first in new space astrophysics mission by the Astro2010 Decadal Survey incorporating the Joint Dark Energy Mission (JDEM)-Omega payload concept and multiple science white p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b4d3f93fd825230053f0b40205306e3
https://doi.org/10.1117/12.898528
https://doi.org/10.1117/12.898528
Autor:
D. A. Content, M. G. Dittman, B. Firth, J. M. Howard, C. E. Jackson, J. P. Lehan, J. E. Mentzell, B. A. Pasquale, M. J. Sholl
Publikováno v:
SPIE Proceedings.
We present the latest optical design concepts for the Joint Dark Energy Mission (JDEM). This mission will tightly constrain the cosmological parameters describing the accelerating expansion of the universe. The current candidate designs are based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e11557a32245fcafcfab45e6f7b83423
https://doi.org/10.1117/12.859144
https://doi.org/10.1117/12.859144
Publikováno v:
Applied optics. 28(14)
Optical properties, stoichiometry, chemical bonding states, and crystal structure of aluminum oxynitride (AlO(x)N(y)) thin films prepared by reactive ion assisted deposition were investigated. The results show that by controlling the amount of reacti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a69756cfd909215fe0a2686562dd6978
https://pubmed.ncbi.nlm.nih.gov/20555598
https://pubmed.ncbi.nlm.nih.gov/20555598
Publikováno v:
Applied optics. 27(2)
The percentage of oxygen in the crystalline lattice of ion-assisted-deposition Lanthanum fluorides is shown to increase with increasing ion beam current density. (AIP)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffa88c78331ad672dd331b45d2282106
https://pubmed.ncbi.nlm.nih.gov/20523580
https://pubmed.ncbi.nlm.nih.gov/20523580
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 10:3401-3406
MetaModeTM reactive sputtering was employed to produce optical quality aluminum oxide films at rates an order of magnitude higher than those possible with conventional reactive magnetron sputtering. System pressure, reactive‐to‐nonreactive gas fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9527cf69c260d4b99afd9386d97410f
https://doi.org/10.1116/1.577791
https://doi.org/10.1116/1.577791
Autor:
J. P. Lehan, Glenn Byron, Ryan S. McClelland, David W. Robinson, Theodore Hadjimichael, R. Russell
Publikováno v:
SPIE Proceedings.
We present a method for the precision alignment of cylinder lenses which has been employed for the null lenses used to test the segmented mirrors for the IXO x-ray telescope. We also present a design for a housing for such a lens.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de5079cec09d95adff4d85069a63f781
https://doi.org/10.1117/12.826636
https://doi.org/10.1117/12.826636
Autor:
W. W. Zhang, J. Bolognese, G. Byron, K. W. Chan, D. A. Content, T. J. Hadjimichael, Charles Hewitt, M. D. Hill, M. Hong, J. P. Lehan, L. Lozipone, J. M. Mazzarella, R. McClelland, D. T. Nguyen, L. Olsen, R. Petre, D. Robinson, S. O. Rohrbach, R. Russell, T. T. Saha, M. Sharpe, M. V. Gubarev, W. D. Jones, S. L. O'Dell, W. Davis, D. R. Caldwell, M. Freeman, W. Podgorski, P. B. Reid
Publikováno v:
SPIE Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19db6e19fd8aebba2761141abaf134c0
https://doi.org/10.1117/12.833544
https://doi.org/10.1117/12.833544
Publikováno v:
Thin Solid Films. 203:227-250
We have applied a variety of analytical tools to educe the composition and morphology of thin films of hafnium dioxide deposited under a variety of conditions. Surface analytical techniques include scanning electron microscopy, transmission electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e9c4441cb02002711f657758041ec03
https://doi.org/10.1016/0040-6090(91)90131-g
https://doi.org/10.1016/0040-6090(91)90131-g
Autor:
W. W. Zhang, J. Bolognese, G. Byron, K. W. Chang, D. A. Content, T. J. Hadjimichael, Charles He, M. D. Hill, M. Hong, J. P. Lehan, L. Lozipone, J. M. Mazzarella, R. McClelland, D. T. Nguyen, L. Olsen, R. Petre, D. Robinson, S. O. Rohrbach, R. Russell, T. T. Saha, M. Sharpe, M. V. Gubarev, W. D. Jones, S. L. O'Dell, W. Davis, D. R. Caldwell, M. Freeman, W. Podgorski, P. B. Reid
Publikováno v:
Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray.
As NASA's next major space X-ray observatory, the Constellation-X mission (Bookbinder et al. 2008) requires mirror assemblies with unprecedented characteristics that cannot be provided by existing optical technologies. In the past several years, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66cf24b9598aa5a074ce8c4908269ac7
https://doi.org/10.1117/12.788453
https://doi.org/10.1117/12.788453