National Optical Astronomy Observatories (NOAO) IR adaptive optics program. III - Criteria for the wavefront sensor selection

Details National Optical Astronomy Observatories (NOAO) IR adaptive optics program. III - Criteria for the wavefront sensor selection National Optical Astronomy Observatories (NOAO) IR adaptive optics program. III - Criteria for the wavefront sensor selection

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..628..305g&link_type=abstract

IN: Advanced technology optical telescopes III; Proceedings of the Meeting, Tucson, AZ, Mar. 3-6, 1986 (A87-35201 15-89). Bellin

Physics

Optics

2

Adaptive Optics, Astronomical Observatories, Infrared Astronomy, Infrared Imagery, Sensors, Wave Fronts, Algorithms, Karhunen-Loeve Expansion, Microprocessors, Orthogonality, Signal To Noise Ratios

Scientific paper

The NOAO IR Adaptive Optics Program has elected to develop a system using the visual light from an object to sense the wavefront errors and generate the corrections required to give diffraction-limited imaging in the near-IR (2-10 microns). The performance of a variety of possible sensors systems has been evaluated, computing both their ideal performance and their expected performance with available detectors. A major consideration in this evaluation is the ability of the sensor to measure mean wavefront tilts of the visual wavefront over subapertures corresponding to the (larger) IR wavefront scale lengths. A Hartmann-Shack sensor with red-sensitive image intensifiers and a Reticon detector are used.

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