Abstract

The theory of transformation optics is used to adjust the direction of emitted beams from a flat lens. In this paper, a planar lens is presented based on the transformation optics approach, which converts cylindrical beams emitted from a line source into a planar beam at the desired angle. The index profile of a planar inhomogeneous lens is considered as the refractive index of the original coordinate system. So, this yields a lens that produces a flat wave at an arbitrary angle. The performance of the structure is confirmed by COMSOL software.

© 2021 Optical Society of America

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