Abstract

The performance of a grating that is elastically deformed from a sphere into a toroid is that expected from ray traces assuming an ideal toroidal surface. Thus, it has become possible to select the wavelength range, in which a toroidal grating spectrograph is near stigmatic, by adjusting the forces acting on the elastic grating substrate. The possibility of producing toroidal gratings by replication of an elastically deformed blank is pointed out.

© 1981 Optical Society of America

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)

Imaging extreme ultraviolet spectrometer employing a single toroidal diffraction grating: the initial evaluation

M. C. E. Huber, J. G. Timothy, J. S. Morgan, G. Lemaitre, G. Tondello, E. Jannitti, and P. Scarin
Appl. Opt. 27(16) 3503-3510 (1988)

Stigmatic performance of an EUV spectrograph with a single toroidal grating

Martin C. E. Huber and Giuseppe Tondello
Appl. Opt. 18(23) 3948-3953 (1979)

Nearly stigmatic toroidal grazing-incidence spectrometer in the 100–300-Å range: design

Peter L. Hagelstein
Appl. Opt. 31(10) 1464-1471 (1992)

Grazing incidence spectrograph–monochromator with a focusing toroidal mirror

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