title: Chromatic aberration of light focusing in hyperbolic anisotropic metamaterial made of metallic slit array.
abstract: The dispersion of a hyperbolic anisotropic metamaterial (HAM) and the chromatic aberration of light focusing in this kind of HAM are studied. The HAM is formed by alternately stacking metal and dielectric layers. The rules of materials and filling factors affecting the optical property of HAM are given. The chromatic aberration of light focusing is demonstrated both theoretically and numerically. By comparing the theory with the simulation results, the factors influencing the focal length, including the heat loss of material and low spatial frequency modes, are discussed. The investigation emphasizes the anomalous properties, such as chromatic aberration and low spatial frequency modes influencing focus position, of HAM compared with that in conventional lens. Based on the analysis, the possibility of using HAM to focus light with two different wavelengths at the same point is studied.
authors.affiliation: Department of Physics, Harbin Institute of Technology, Harbin, 150001, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Guo
authors.forename: Jianlong
authors.initials: J
authors.lastname: Liu
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Shutian
authors.initials: S
authors.lastname: Liu
mesh_terms: D016477:Artifacts; D003116:Color; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007909:Lenses; D008027:Light; D008420:Manufactured Materials; D008670:Metals; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation
chemical_list: D008670:Metals