Abstract

We have measured zero- and first-order efficiencies of plane diffraction grazings over the 100–300-Å band using the NRL beamline facility at the National Synchrotron Light Source. Measurements were taken at grating angles of 5°, 10°, and 15° and the incident radiation was polarized primarily in the transverse magnetic mode. Four (three laminar, one blazed) of the gratings were ion etched in high quality quartz blanks, overcoated with 200 Å of gold. A fifth (blazed) grating was ruled in gold. The line densities are 1000, 2000, and 3600 grooves/mm for those with laminar profiles. Both blazed gratings have a blaze angle of 8° and line densities of 3600 grooves/mm. Measured first-order efficiencies up to 15% were obtained for the laminar gratings and up to 8% was obtained for the ion-etched blazed grating. Much lower efficiencies (≤2%) were measured for the ruled grating. A computer program was written to calculate grating efficiencies using a full electromagnetic model. Measured efficiencies of the ion-etched gratings agree well with predicted values, but the measured first-order efficiency of the ruled grating is much lower than predicted.

© 1989 Optical Society of America

Full Article  |  PDF Article
Related Articles
Electron Microscope Method for Measuring Diffraction Grating Groove Geometry

W. A. Anderson, G. L. Griffin, C. F. Mooney, and R. S. Wiley
Appl. Opt. 4(8) 999-1003 (1965)

Extreme Ultraviolet Explorer spectrometer

Michael C. Hettrick, Stuart Bowyer, Roger F. Malina, Christopher Martin, and Stanley Mrowka
Appl. Opt. 24(12) 1737-1756 (1985)

Optimization of the Rowland circle grating for high-resolution astrophysical spectrometers working at soft x-ray and EUV wavelengths

John F. Meekins, Herbert Gursky, and Raymond G. Cruddace
Appl. Opt. 24(18) 2987-2995 (1985)

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 (14)

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

Equations (24)

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

Metrics

You do not have subscription access to this journal. Article level metrics 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