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Proceedings Paper

Color and spatial aplanatism for corrected holographic gratings
Author(s): Reiner Guether
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Paper Abstract

Image plane in devices with dispersion contains a spatial coordinate and a wavelength coordinate. For the wavelength coordinate we define chromatic aplanatism in analogy with usual aplanatism. The feasibility of this definition is tested by ray tracing. A condition for color aplanatism is derived which can be used for the construction of color aplanatic surfaces. In the neighborhood of a color aplanatic point we find a very high spectral resolution in combination with a high aperture. In some cases of color aplanatism spatial aplanatism occurs along the spatial coordinate of imaging. This additional aplanatism can be a starting point for a combination of spatial with spectral resolution. This new task is interesting for remote sensing from satellites. We give variants of gratings with spectral aplanatism and with spatial resolution.

Paper Details

Date Published: 15 April 1993
PDF: 10 pages
Proc. SPIE 1780, Lens and Optical Systems Design, (15 April 1993); doi: 10.1117/12.142829
Show Author Affiliations
Reiner Guether, Ferdinand-Braun-Institut fuer Hoechstfrequenztechnik (Germany)


Published in SPIE Proceedings Vol. 1780:
Lens and Optical Systems Design

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