11 September 1998 Alternative guide stars for adaptive optics
Author Affiliations +
Abstract
In addition to natural and laser guide stars for adaptive optics, it is proposed to use radio-created guide stars or fringes. Heating by intense radio beams either modulators sodium lamp illumination, or creates and modifies plasma in different altitudes. The plasma relaxes by artificial air glow, which is concentrated in few lines, mainly nitrogen and oxygen. Fringes between intense radio beams create plasma fringes, also visible from the telescope. Ionospheric heating was also shown to create patchy artificial aurora. In all cases, the multiplicity of sources or fringes allows multi-conjugate adaptive optics of wide fields of view, and shows promise for long baseline optical interferometry.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Erez N. Ribak, Erez N. Ribak, } "Alternative guide stars for adaptive optics", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); doi: 10.1117/12.321724; https://doi.org/10.1117/12.321724
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT

PASS-2: photometry of the polychromatic laser guide star
Proceedings of SPIE (September 26 1999)
Mesospheric sodium monitoring for laser guide star
Proceedings of SPIE (November 10 2004)
A sodium guide star adaptive optics system for the 1.8...
Proceedings of SPIE (September 12 2012)
Radio-created plasma beacons for atmospheric tomography
Proceedings of SPIE (December 06 1998)
A pulsed guide star laser can be the brightest
Proceedings of SPIE (July 28 2010)

Back to Top