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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 52, Iss. 10 — Oct. 1, 1962
  • pp: 1120–1122

Evaluation of a Specially Coated Concave Diffraction Grating in the Vacuum Ultraviolet

P. G. WILKINSON and D. W. ANGEL  »View Author Affiliations


JOSA, Vol. 52, Issue 10, pp. 1120-1122 (1962)
http://dx.doi.org/10.1364/JOSA.52.001120


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Abstract

A 21-ft original concave diffraction grating, ruled in aluminum and blazed for 5500 Å, has been overcoated with a 1000-Å layer of aluminum followed by a 265-Å layer of magnesium fluoride. The relative grating efficiency has been evaluated in spectral orders 2 through 6 at 1335 Å. It was found that the efficiency was increased 12 times at 1335 Å (4th order) and 20 times at 1215 Å (5th order). The blaze was considerably sharper after coating than before coating. No impairment in resolving power resulted.

Citation
P. G. WILKINSON and D. W. ANGEL, "Evaluation of a Specially Coated Concave Diffraction Grating in the Vacuum Ultraviolet," J. Opt. Soc. Am. 52, 1120-1122 (1962)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-52-10-1120

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