Abstract

In a previous paper [ S. Engman and P. Lindblom, Appl. Opt. 23, 3341 ( 1984)] a new type of spectrometer, based on the multiechelle grating arrangement (MEGA) principle, was described. The expected resolution and principles of operation were verified. However, at that time the spectrometer was equipped with poor gratings that did not allow its testing in spectroscopic applications. Since then, new gratings have been obtained and improvements made to the system. This paper reports the spectroscopic tests made with the improved instrument. It is shown that the MEGA spectrometer is a useful new tool for optical spectroscopy.

© 1988 Optical Society of America

MEGA spectrometer: a monochromator with supermillion resolution

Sonja Engman and Peter Lindblom
Appl. Opt. 23(19) 3341-3348 (1984)

Echelle gratings: their testing and improvement

George R. Harrison, Erwin G. Loewen, and Robert S. Wiley
Appl. Opt. 15(4) 971-976 (1976)

Multiechelle grating mountings with high spectral resolution and dispersion

Sonja Engman and Peter Lindblom
Appl. Opt. 21(23) 4363-4367 (1982)

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)

Imaging spectrometer for high resolution measurements of stratospheric trace constituents in the ultraviolet

Marsha R. Torr and D. G. Torr
Appl. Opt. 27(3) 619-626 (1988)