Optical transfer function-based merit functions for automatic diffraction grating system design.

Details Optical transfer function-based merit functions for automatic diffraction grating system design. Optical transfer function-based merit functions for automatic diffraction grating system design.

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jmo....36..675t&link_type=abstract

Journal of Modern Optics, Vol. 36, No. 5, p. 675 - 684

Physics

Optics

Gratings: Optical Design

Scientific paper

Two types of variable spacing diffraction gratings for use with a Seya-Namioka monochromator system are optimized by two merit functions: a diffraction-based optical transfer function (OTF) and a geometrical optics-based OTF. For the optimization of the system, Powell's generalized least-squares method is adopted. Optimization results of these gratings are evaluated by spot diagrams, geometrical line spread functions and the two OTFs mentioned above. The spread of spots after optimization is well corrected, and the two OTF merit functions are suitable for the aberration-balancing in automatic grating system design.

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