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(Color online) (a) Fabricated “flat cylindrical” lens. (b) Illustration of the experimental setup. The source is located at . (c) Picture of the experimental setup.
(Color online) (a) Photonic band structure of the PhC for TM modes. (b) Equifrequency contours close to the intersection between the second band and the light cone. Red circles are equifrequency contours and green is the light cone for .
(Color online) (a) Measured phase distributions (in degrees) at for the source (left) and the image (right). The flat lens (photonic crystal) is depicted between the source and the image. (b) Measured amplitude distributions at for the source (left) and the image (right). The flat lens (photonic crystal) is depicted between the source and the image. The amplitude of image shown is lower than that of the object because the image has a bigger size and the radiation diverges along the vertical direction. (c) Intensity profile at the image center. The intensity is calculated from the square of the pixel values of the measured electric field along the axis.
(Color online) (a) The image (intensity) of two sources from two different vector network analyzers. (b) The intensity distribution along the white line marked in (a).
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