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Applied Optics

Applied Optics


  • Vol. 29, Iss. 10 — Apr. 1, 1990
  • pp: 1451–1454

Second-order imaging properties of circular field spectrographs

Christopher Palmer  »View Author Affiliations

Applied Optics, Vol. 29, Issue 10, pp. 1451-1454 (1990)

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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

Original Manuscript: April 24, 1989
Published: April 1, 1990

Christopher Palmer, "Second-order imaging properties of circular field spectrographs," Appl. Opt. 29, 1451-1454 (1990)

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  1. T. Namioka, “Theory of the Concave Grating,” J. Opt. Soc. Am. 49, 446–460 (1958). [CrossRef]
  2. C. Palmer, “Absolute Astigmatism Correction for Flat Field Spectrographs,” Appl. Opt. 28, 1605–1607 (1989). [CrossRef] [PubMed]
  3. H. A. Rowland, “Preliminary Notice of the Results Accomplished in the Manufacture and Theory of Gratings for Optical Purposes,” Philos. Mag. 13, 469–474 (1882); “On Concave Gratings for Optical Purposes,” Philos. Mag. 16, 197–210 (1883). [CrossRef]
  4. C. Palmer, “Limitations of Aberration Correction in Spectrometer Imaging,” Proc. Soc. Photo-Opt. Instrum. Eng. 1055, 359–369 (1989).

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