Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Erin M. Sabatke"'
Publikováno v:
SPIE Proceedings.
We developed a distortion measurement technique that works in snapshot mode. Distortion information across the full field of view can be captured in a single short exposure. To do this, a Ronchi ruling is placed in the object and image planes of the
Publikováno v:
Advanced Wavefront Control: Methods, Devices, and Applications V.
A MATLAB toolbox has been developed for wavefront control of segmented optical systems. The toolbox is applied to the optical models of the James Webb Space Telescope (JWST) in general and to the JWST Testbed Telescope (TBT) in particular, implementi
Publikováno v:
Applied optics. 44(8)
Large segmented telescopes cannot be modeled accurately with fast-Fourier-transform techniques since small features such as gaps between the segments will be inadequately sampled. An analytic Fourier-transform method can be used to model any pupil co
Autor:
James H. Burge, Erin M. Sabatke
Publikováno v:
Frontiers in Optics.
In the design of wide-field interferometric imaging telescopes, the causes of image degradation are relatively simple. Intelligent optimization of a single arm of the system can be used to improve the combined system's performance.
Autor:
Erin M. Sabatke, James H. Burge
Publikováno v:
SPIE Proceedings.
We discuss the basic concepts that have been useful in our work designing multiple aperture telescopes with wide fields of view. We examine combining errors at zero field and errors that are linear as a function of field. An easy optimization for sat
Autor:
Erin M. Sabatke, James H. Burge
Publikováno v:
SPIE Proceedings.
Gossamer mirrors have the potential to reach 100 meter baselines in space because of their very light weight. We explore a type of system that uses an array of flat gossamer mirrors as a primary mirror. Using wavefront reconstruction, we can easily e
Autor:
Erin M. Sabatke, Jose Sasian
Publikováno v:
SPIE Proceedings.
We establish the groundwork for a phase theory applicable to multiple-aperture systems. To do this, we define ideal behavior as the phase behavior of an off-axis system that has inherent rotational symmetry. Then we examine the phase behavior of a mo
Publikováno v:
SPIE Proceedings.
Increased performance for optical telescopes has historically come from larger apertures, from technological advances for the telescope components, such as detectors, and from access to better sites, such as space. Little has changed in the basic tel
Autor:
Jose Sasian, Erin M. Sabatke
Publikováno v:
SPIE Proceedings.
We establish the groundwork for a phase theory applicable to multiple-aperture systems. We examine the phase behavior of a reference system with rotational symmetry, and then examine the phase behavior of a system with only a single plane of symmetry
Publikováno v:
SPIE Proceedings.
The 22.8 m Large Binocular Telescope Interferometer will be a uniquely powerful tool for imaging and nulling interferometry at thermal infrared wavelengths (2 - 20 micrometers ) because of the LBT's unusual combination of low emissivity, high spatial