Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Stigmatic performance of an EUV spectrograph with a single toroidal grating

Not Accessible

Your library or personal account may give you access

Abstract

The stigmatic performance of conventionally ruled toroidal gratings used near normal incidence is explored in detail. A single-grating spectrograph, particularly suitable for observing the dynamics of the solar corona in the 520–630-Å wavelength range, is described. The arrangement uses a 3600-line/mm grating with a horizontal radius of curvature of 2 μm that generates images with a blur of less than 20 μm over an area 2.6 mm high × 80 mm wide, while over an area 6 mm × 80 mm the blur does not exceed 40 μm. In terms of wavelength intervals these blurs correspond to 28 mÅ and 56 mÅ, and the width of the area covers a spectral range of 110 Å. If the spectrograph is equipped with a 20-μm wide entrance slit, and if this slit is placed in the focal plane of a telescope with 4-m focal length, spatial resolution elements of 1 × 1 (sec of arc)2 and 1 × 2 (sec of arc)2 over a slit height of 2 min of arc and 5 min of arc, respectively, result.

© 1979 Optical Society of America

Full Article  |  PDF Article
More Like This
Grazing-incidence high-resolution stigmatic spectrograph with two optical elements

A. M. Malvezzi, L. Garifo, and G. Tondello
Appl. Opt. 20(14) 2560-2565 (1981)

Grazing incidence spectrograph–monochromator with a focusing toroidal mirror

L. Garifo, A. M. Malvezzi, and G. Tondello
Appl. Opt. 18(12) 1900-1906 (1979)

Stigmatic spectrometers for extended sources: design with toroidal varied-line-space gratings

Luca Poletto and Roger J. Thomas
Appl. Opt. 43(10) 2029-2038 (2004)

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Figures (5)

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

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

Tables (2)

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

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

Equations (4)

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

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved