Imaging properties of diffraction gratings
doctoral thesis
For almost a century now diffraction gratings are being used as the dispersing element in spectroscopic systems. In the greater majority of cases this grating is of the reflecting type, which (among others) has the advantage that the radiation to be analysed need not pass absorbing material as is the case with prisms and transmission gratings. It is therefore possible to study a large part of the electromagnetic spectrum on account of the reflecting properties of the coatings available. As reflection gratings are widely applied, many papers have appeared, describing various aspects of spectral image formation by such gratings. In this thesis we shall restrict ourselves to the properties of grating systems as seen from the viewpoint of the geometrical aberration theory. We have excluded any questions of physical optics such as, for instance, diffraction due to the finite width of the grating and the intensity distribution over the spectral orders (blaze). Also matters as ruling errors and ghosts will not be considered here.
TNO Identifier
271993
Publisher
Waltman
Collation
90 p.
Place of publication
Delft
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