Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Michael A. Oliker"'
Quantum Communication over Atmospheric Channels: A Framework for Optimizing Wavelength and Filtering
Publikováno v:
Physical Review Applied. 16
Despite quantum networking concepts, designs, and hardware becoming increasingly mature, there is no consensus on the optimal wavelength for free-space systems. We present an in-depth analysis of a daytime free-space quantum channel as a function of
Autor:
R. Nicholas Lanning, Mark A. Harris, Scott C. Newey, Johnathan D. Schiller, Jeffery F. Morris, Mark L. Eickhoff, Michael B. Flanagan, Michael Bareian, Kurt E. Stoltenberg, Brian T. Kay, Michael D. Oliker, Denis W. Oesch, Mark T. Gruneisen
Publikováno v:
Physical Review Applied. 16
Previous demonstrations of free-space quantum communication in daylight have been touted as significant for the development of global-scale quantum networks. Until now, no one has carefully tuned their atmospheric channel to reproduce the daytime sky
Autor:
Michael D. Oliker, Mark T. Gruneisen
Publikováno v:
Quantum Technologies and Quantum Information Science V.
Autor:
Mala Mateen, Michael D. Oliker
Publikováno v:
Adaptive Optics Systems VI.
A new technique for phase retrieval in non-linear Curvature Wavefront Sensors is presented. Unlike the iterative Gerchberg-Saxton technique, this technique retrieves pupil phase in a single step. It starts by calculating the optical transfer function
Publikováno v:
Proceedings of the Adaptive Optics for Extremely Large Telescopes 5.
Publikováno v:
Optical Engineering. 57:1
Past research in adaptive optics (AO) has demonstrated the link between apparent beacon extent and wavefront gradient estimation sensitivity, or optical gain, of a classical Shack-Hartmann (SH) subaperture when using quad-cell detector regions. Pixel
Autor:
Michael A. Oliker
Publikováno v:
Encyclopedia of Educational Philosophy and Theory ISBN: 9789812875327
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::051eb822656277f4643d00fa8748113f
https://doi.org/10.1007/978-981-287-532-7_310-1
https://doi.org/10.1007/978-981-287-532-7_310-1
Autor:
Daniel Roskey, Michael D. Oliker
Publikováno v:
SPIE Proceedings.
The gain in Hartmann sensors varies if the shape of the guide star varies. For Natural Guide Star (NGS) operation, this can be an extended object which changes, e.g. a Comet. For a Sodium Laser Guide Star (LGS) system the spots change if the Sodium L
Autor:
Denis W. Oesch, Darryl J. Sanchez, Patrick R. Kelly, Michael D. Oliker, Kevin P. Vitayaudom, Carolyn M. Tewksbury-Christle, Katia Shtyrkova, Julie C. Smith
One of the problems associated with the use of the sodium laser guide star as a beacon for an adaptive optics system is the changes in the sensitivity of the wavefront sensor caused by the extended nature of the sodium layer. Shack-Hartmann wavefront
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76b41817fc5a0f65fc099f03eab7d14e
https://doi.org/10.21236/ada531341
https://doi.org/10.21236/ada531341
Autor:
Michael D. Oliker
Publikováno v:
SPIE Proceedings.
A new wavefront sensors design is presented which allows reconstruction of phase without the insensitivity to waffle mode which has previously plagued the Fried Geometry. This new system senses and reconstructs waffle, with less total computational b