Adaptive optics for diffraction-limited infrared imaging with 8-m telescopes.

Physics – Optics

Scientific paper

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Adaptive Optics: Very Large Telescopes

Scientific paper

When equipped with adaptive optics, the coming generation of large 6-10-m telescopes can combine huge light grasp with very sharp images. The authors describe a specific design concept for recovery of diffraction-limited images in the 1.6 and the 2.2-μm atmospheric windows, yielding 0.05-arcsec resolution for an 8-m telescope. A detailed performance analysis shows that for typical conditions Strehl ratios of 25% are expected at 2.2 μm, with the probability of finding a sufficiently bright field star exceeding 50%.

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