Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Scott Severson"'
Autor:
Philip Choi, Christoph Baranec, Reed Riddle, Erik Littleton, Scott Severson, Erik Spjut, Daniel S. Contreras, Jonathan R. Wong, Blaine N. Gilbreth, Alex R. Rudy, Katherine E. Badham, Dalton Bolger, William A. Morrison, Joseph Long, Christian Guerrero, Lorcan P. McGonigle, Fernando Ortega
Publikováno v:
SPIE Proceedings.
We present the instrument design and first light observations of KAPAO, a natural guide star adaptive optics (AO) system for the Pomona College Table Mountain Observatory (TMO) 1-meter telescope. The KAPAO system has dual science channels with visibl
Autor:
Dave Palmer, Daren Dillon, Katie M. Morzinski, Chris Lockwood, Marc Reinig, Jess A. Johnson, Donald T. Gavel, Bryant Grigsby, Scott Severson, Brian Baumann, S. Mark Ammons, Elinor L. Gates
Publikováno v:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation.
Visible Light Laser Guidestar Experiments (ViLLaGEs) is a new Micro-Electro Mechanical Systems (MEMS) based visible-wavelength adaptive optics (AO) testbed on the Nickel 1-meter telescope at Lick Observatory. Closed loop Natural Guide Star (NGS) expe
Autor:
Donald T. Gavel, Chris Lockwood, Daren Dillon, S. Mark Ammons, Elinor L. Gates, Bryant Grigsby, Jess A. Johnson, Marc Reinig, Scott Severson, David Palmer, Brian J. Bauman, Kathleen Morzinski
Publikováno v:
SPIE Proceedings.
The Lick Observatory is pursuing new technologies for adaptive optics that will enable feasible low cost laser guidestar systems for visible wavelength astronomy. The Villages system, commissioned at the 40 inch Nickel Telescope this past Fall, serve
Autor:
Julia W. Evans, Brian J. Bauman, Dave Palmer, Scott Severson, Lisa Poyneer, Daren Dillon, Katie M. Morzinski, Donald T. Gavel, Bruce Macintosh
Publikováno v:
SPIE Proceedings.
We present a summary of our current results from the Extreme Adaptive Optics (ExAO) Testbed and the design and status of its coronagraphic upgrade. The ExAO Testbed at the Laboratory for Adaptive Optics at UCO/Lick Observatory is optimized for ultra-
Autor:
Bruce Macintosh, Scott Severson, Julia W. Evans, Katie M. Morzinski, Donald T. Gavel, Claire E. Max, Daren Dillon, Dave Palmer
Publikováno v:
SPIE Proceedings.
Current high-contrast "extreme" adaptive optics (ExAO) systems are partially limited by deformable mirror technology. Mirror requirements specify thousands of actuators, all of which must be functional within the clear aperture, and which give nanome
Publikováno v:
SPIE Proceedings.
SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida, United States
Series: Proceedings of SPIE; no. 6272
Series: Proceedings of SPIE; no. 6272
Publikováno v:
Optics letters. 31(5)
Received October 11, 2005; accepted November 10, 2005; posted December 2, 2005 (Doc. ID 65234) We have measured a contrast of 6.5 x 10(-8) from 10 to 25 lambda/D in visible light on the Extreme Adaptive Optics testbed, using a shaped pupil for diffra
Autor:
Paul Bierden, Lisa Poyneer, Katie M. Morzinski, Donald T. Gavel, Scott Severson, David Palmer, Julia W. Evans, Daren Dillon, Bruce Macintosh, Scot S. Olivier, Layra Reza
Publikováno v:
MEMS/MOEMS Components and Their Applications III.
We have demonstrated that a microelectrical mechanical systems (MEMS) deformable mirror can be flattened to < 1 nm RMS within controllable spatial frequencies over a 9.2-mm aperture making it a viable option for high-contrast adaptive optics systems
Autor:
Layra Reza, David W. Palmer, Scot S. Olivier, Daren Dillon, Katie M. Morzinski, Scott Severson, Lisa Poyneer, Gary E. Sommargren, Julia W. Evans, Donald T. Gavel, Bruce Macintosh
Publikováno v:
Techniques and Instrumentation for Detection of Exoplanets II.
"Extreme" adaptive optics systems are optimized for ultra-high contrast applications, such as ground-based extrasolar planet detection. The Extreme Adaptive Optics Testbed at UC Santa Cruz is being used to investigate and develop technologies for hig
Publikováno v:
Clinical nursing research. 14(2)
An intervention assisting older adults to communicate their pain was tested in a posttest-only experiment. Thirty-eight preoperative older adults were randomly assigned to a communication group watching a videotape about communicating and managing po