In:
Journal of the Optical Society of America A, Optica Publishing Group, Vol. 39, No. 11 ( 2022-11-01), p. 1992-
Abstract:
Hyperchromatic systems are characterized by strong longitudinal
chromatic aberrations that are quantitatively described by very small equivalent Abbe numbers. In this contribution, doublet systems are
systematically studied with the aim of obtaining extreme values for the equivalent Abbe numbers. Both purely refractive combinations and
hybrid systems of diffractive and refractive components are considered. Chromatic axial splitting is determined as a function of
the optical powers of the individual components as well as the dispersion properties of the materials involved. In order to determine
actual implementable configurations for extremely small equivalent Abbe numbers, a systematic ray-trace analysis is performed in addition
to paraxial studies, taking into account geometric constraints on lens curvatures and considering also complete, continuous dispersion
curves. As extreme values for systems with appropriate imaging quality, an equivalent Abbe number of υ ~ = − 2.5 is obtained for the purely
refractive approach, and υ ~ = 0.4 for the hybrid case, which is more
than 8 times smaller than the absolute value of a single diffractive lens.
Type of Medium:
Online Resource
ISSN:
1084-7529
,
1520-8532
DOI:
10.1364/JOSAA.473546
Language:
English
Publisher:
Optica Publishing Group
Publication Date:
2022
SSG:
24,1
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