Abstract

Critical resolution tests were made near limiting geometric incidence angles on a 7.25-in. wide 300-grooves per mm Bausch & Lomb grating. The importance of double passing a grating to increase the available resolving power is discussed and exhibited by reproductions of the hyperfine structure of Hg λ4358, λ5461, λ15 295. A photograph of a reversal in Hg λ4358 presents a resolving power well in excess of 1 000 000 which far exceeds the grazing incidence resolving power of the grating used single pass. An analysis of the hyperfine structure of Hg λ15 295 is given. A discussion of ghost intensities in going from single pass to double pass is also presented. Maximal performance at 4 widely separated wavelengths is given.

© 1957 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Performance of an Eight-Inch Babcock Grating in a Large Vacuum Spectrograph

A. Keith Pierce
J. Opt. Soc. Am. 47(1) 6-14 (1957)

Double-Passing a Plane Grating*

D. H. Rank and T. A. Wiggins
J. Opt. Soc. Am. 42(12) 983-984 (1952)

The Reduction of Ghosts in Diffraction Grating Spectra

N. A. Finkelstein, C. H. Brumley, and R. J. Meltzer
J. Opt. Soc. Am. 42(2) 121-126 (1952)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription