Translator Disclaimer
27 June 2006 Fundamental limits to wavefront sensing in the submillimeter
Author Affiliations +
Abstract
With the advent of large-format submillimeter wavelength detector arrays, and a new 25 m diameter submillimeter telescope under consideration, the question of optimal wavefront sensing methods is timely. Indeed, not only should bolometric array detectors allow the use of a variety of wavefront sensing techniques already in use in the optical/infrared, but in some cases it should actually be easier to apply these techniques because of the more benign temporal properties of the atmosphere at long wavelengths. This paper thus addresses the fundamental limits to wavefront sensing at submillimeter wavelengths, in order to determine how well a telescope surface can be measured in the submillimeter band. First several potential measurement approaches are discussed and compared. Next the theoretical accuracy of a fringe phase measurement in the submillimeter is discussed. It is concluded that with Mars as the source, wavefront sensing at the micron level should be achievable at submillimeter wavelengths in quite reasonable integration times.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Serabyn "Fundamental limits to wavefront sensing in the submillimeter", Proc. SPIE 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 62750Z (27 June 2006); https://doi.org/10.1117/12.672636
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Fringe tracker for the VLTI spectro-imager
Proceedings of SPIE (July 27 2008)
An imaging interferometer for compact sources
Proceedings of SPIE (September 13 2011)
Novel wavefront sensor for interferometry
Proceedings of SPIE (February 20 2003)

Back to Top