Abstract

Modified expressions for reflection coefficients are derived for the purpose of predicting the energy distribution among spectral orders produced by a grating at near grazing incidence. Predictions carried out under reasonable simplifying assumptions are compared with experimental data obtained by the use of a grating with 30 000 lines/in. set at a grazing angle of 4.64°. Experimental evidence indicates that in the particular arrangement first-order spectra begin to have appreciable intensity at about 60 A, while second and third orders become observable at 100 A and 150 A, respectively. At 110 A, the fraction of the incident energy present in the first- and second-order spectra is 5.4% and 1.5%, respectively. The calculations are in good general agreement with the observed response of the grating.

© 1955 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
A New Theory of Wood’s Anomalies on Optical Gratings

A. Hessel and A. A. Oliner
Appl. Opt. 4(10) 1275-1297 (1965)

A Method for Comparing the Reflecting Power of Concave Gratings in the Soft X-Ray Region

D. H. Tomboulian and W. E. Behring
Appl. Opt. 3(4) 501-505 (1964)

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 (6)

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 (4)

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

Equations (22)

You do not have subscription access to this journal. Equations 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