Recording high-dispersion spherical holographic gratings in a modified Rowland mounting by use of a multimode deformable mirror

Abstract

To reduce the uncorrected higher-order aberrations for holographic gratings requiring an extreme dispersion, we have modified the Rowland mounting by moving the recording laser sources away from the grating. Then, with a multimode deformable plane mirror to record the grating, the correction of all the aberrations up to the fourth order inclusive is found sufficient to obtain a high-quality image. Applied to the FUSE-LYMAN grating, with a groove density of as much as 5740 grooves/mm, for which a resolution of 30,000 was required, this new recording device produces a resolution from 139,000 to 222,000 over the spectral range.

© 2000 Optical Society of America

High-dispersion spherical holographic gratings in a modified Rowland mounting

Michel Duban
Appl. Opt. 40(10) 1599-1608 (2001)

Theory of spherical holographic gratings recorded by use of a multimode deformable mirror

Michel Duban
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Third-generation holographic Rowland mounting: fourth-order theory

Michel Duban
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Third-generation Rowland holographic mounting

Michel Duban
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Universal method for holographic grating recording: multimode deformable mirrors generating Clebsch–Zernike polynomials

Gérard R. Lemaı̂tre and Michel Duban
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