The third-generation holographic Rowland mount consists of a Rowland-mounted, optimally recorded holographic spherical grating, referred to as an optimized Rowland grating (ORG), whose recording sources are aberrated by two auxiliary ORG’s. The main purpose of this mount is to avoid any aspherical surface while providing control over all the parameters needed to correct the aberrations up to and including the fourth order. Earlier [Appl. Opt. <b>30,</b> 4019–4025 (1991)], we considered the case of a moderate coma c2. We now give the fourth-order theory, apply it to the high-dispersion (4600 grooves/mm) grating considered previously, and obtain for it diffraction-limited images.
© 1999 Optical Society of America
(050.2770) Diffraction and gratings : Gratings
(220.1000) Optical design and fabrication : Aberration compensation
(220.1010) Optical design and fabrication : Aberrations (global)
(230.1950) Optical devices : Diffraction gratings
Michel Duban, "Third-Generation Holographic Rowland Mounting: Fourth-Order Theory," Appl. Opt. 38, 3443-3449 (1999)