A micro optical prism and micro lenses with metal-and-dielectric multilayered subwavelength structure (MDMS) are discussed. The MDMS prism has a highly dispersive optical property. Light waves do not spread out in the small prism because of the restriction of propagation direction of light. Optical properties of a curved MDMS prism were investigated by theoretical analysis and numerical simulations. The curved MDMS prism with a structure period of and an apex angle of 90° had angular dispersion of for light of wavelength. A convexo-plane MDMS lens and a gradient-index MDMS lens were also investigated, and the optical behavior for the curved prism with the convexo-plane lens was demonstrated by a numerical simulation.
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