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Astronomical Optics, 2nd Edition
book

Astronomical Optics, 2nd Edition

by Daniel J. Schroeder
September 1999
Intermediate to advanced content levelIntermediate to advanced
478 pages
21h 54m
English
Academic Press
Content preview from Astronomical Optics, 2nd Edition
336
13.
Dispersing Elements and Systems
In first order,
Xj^
2>l^ and l_ =
2>l^/3.
The asymmetry in these wavelengths
about the peak is expected because the blaze fiinction is broader for the longer
wavelength.
The overall blaze fiinction ft)r wavelengths fi-om k_ to k^^ in first order is
shown in Fig. 13.10. The values of
v
used to calculate BF at other wavelengths are
given by
V
= w7r(A^ -
X)/)L
At the wavelengths
XJ^
given by Eq. (13.4.8), the
reader can verify that v = ±7r/2, as expected. Published efficiency curves of first-
order gratings with a greater than a few wavelengths are similar to the curve in
Fig. 13.10, though there is a differenc ...
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Publisher Resources

ISBN: 9780126298109