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General Theory of Light Propagation and Imaging Through the Atmosphere (Paperback, Softcover reprint of the original 1st ed. 2016)
Loot Price: R5,724
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General Theory of Light Propagation and Imaging Through the Atmosphere (Paperback, Softcover reprint of the original 1st ed. 2016)
Series: Springer Series in Optical Sciences, 196
Expected to ship within 10 - 15 working days
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This book lays out a new, general theory of light propagation and
imaging through Earth's turbulent atmosphere. Current theory is
based on the - now widely doubted - assumption of Kolmogorov
turbulence. The new theory is based on a generalized atmosphere,
the turbulence characteristics of which can be established, as
needed, from readily measurable properties of point-object, or
star, images. The pessimistic resolution predictions of Kolmogorov
theory led to lax optical tolerance prescriptions for large
ground-based astronomical telescopes which were widely adhered to
in the 1970s and 1980s. Around 1990, however, it became clear that
much better resolution was actually possible, and Kolmogorov
tolerance prescriptions were promptly abandoned. Most large
telescopes built before 1990 have had their optics upgraded (e.g.,
the UKIRT instrument) and now achieve, without adaptive optics
(AO), almost an order of magnitude better resolution than before.
As well as providing a more comprehensive and precise understanding
of imaging through the atmosphere with large telescopes (both with
and without AO), the new general theory also finds applications in
the areas of laser communications and high-energy laser beam
propagation.
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