Diffraction—refraction corrector of the tertiary spectrum

Грейсух Г.И., Ежов Е.Г., Казин С.В., Степанов С.А. Дифракционно-рефракционный корректор третичного спектра // Оптический журнал. 2010. Т. 77. № 9. С. 22–29.

Greisukh G.I., Ezhov E.G., Kazin S.V., Stepanov S.A. Diffraction—refraction corrector of the tertiary spectrum [in Russian] // Opticheskii Zhurnal. 2010. V. 77. № 9. P. 22–29.

G. I. Greĭsukh, E. G. Ezhov, S. V. Kazin, and S. A. Stepanov, "Diffraction—refraction corrector of the tertiary spectrum," Journal of Optical Technology. 77(9), 542-547 (2010). https://doi.org/10.1364/JOT.77.000542

This paper presents an analysis of the possibilities of rigorously superachromatizing optical systems by including a corrector in them that consists of a diffraction lens and two refraction lenses. A technique for choosing the glasses of the refraction lenses and determining the design parameters of the corrector is presented that simultaneously minimizes its Petzval curvature while superachromatizing the optical system. It is shown that combining a diffraction lens with refraction lenses in the corrector makes it possible to further substantially reduce the spherical aberration and spherical chromatism, as a result of which the polychromatic resolution of the system can be significantly enhanced both on the axis and over the entire angular field of the optical system.

The authors are thankful to M.A. Gan for problem setting and useful discussion.

The research was supported by the Ministry of education and science of RF as part of the Federal special purpose program "Scientific and academic staff of innovative Russia" for 2009-2013 (state contract No. 16.740.11.0145).