Second-order imaging properties of circular field spectrographs
Applied Optics, Vol. 29, Issue 10, pp. 1451-1454 (1990)
http://dx.doi.org/10.1364/AO.29.001451
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Abstract
The second-order focusing properties of a grating spectrograph with fixed entrance slit and a circular image field are investigated analytically. It is shown that the Rowland mount is the only circular field spectrograph mount which allows perfect tangential focusing (to second order) over a predetermined wavelength range, while two classes of mounts exist, one of which is nontrivial, for which astigmatism is corrected exactly on a circular arc.
© 1990 Optical Society of America.
Citation
Christopher Palmer, "Second-order imaging properties of circular field spectrographs," Appl. Opt. 29, 1451-1454 (1990)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-29-10-1451
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