[26a-E205-1~9] 3.2 Equipment optics and materials

[26a-E205-4] Examination of aberration correction of polarized Fresnel lens using genetic algorithm

〇(M2)Ryo Maruyama¹, Moritsugu Sakamoto^1,3, Kohei Noda^1,3, Tomoyuki Sasaki^1,3, Nobuhiro Kawatsuki^2,3, Hiroshi Ono^1,3 (1.Nagaoka Univ. of Tech, 2.Univ. of Hyogo, 3.CREST, JST)

Keywords:Fresnel lens, Polarization diffractive elements

When using a lens, appropriate lens design is essential because various aberrations adversely affect the imaging characteristics. In particular, the correction of chromatic aberration in polarized Fresnel lenses is an extremely important issue for applications. In this study, we attempted to design a polarized Fresnel lens with corrected chromatic aberration by using optimization calculation in genetic algorithm. The ability of the designed polarized Fresnel lens to correct the chromatic aberration was verified by simulation and experiment.