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- W1969570384 abstract "We wish to measure and separate the contribution of atmospheric turbulent layers for multiconjugate adaptive optics. To this end, we propose to create a periodic fringe pattern in the sodium layer and image it with a modified Hartmann sensor. Overlapping sections of the fringes are imaged by a lenslet array onto contiguous areas in a large-format camera. Low-layer turbulence causes an overall shift of the fringe pattern in each lenslet, and high-attitude turbulence results in internal deformations in the pattern. Parallel Fourier analysis permits separation of the atmospheric layers. Two mirrors, one conjugate to a ground layer and the other conjugate to a single high-altitude layer, are shown to widen the field of view significantly compared with existing methods." @default.
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- W1969570384 date "1994-02-15" @default.
- W1969570384 modified "2023-10-14" @default.
- W1969570384 title "Atmospheric tomography using a fringe pattern in the sodium layer" @default.
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- W1969570384 doi "https://doi.org/10.1364/ol.19.000242" @default.
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