Long-distance transfer of a super-resolution near field can be performed with a wavelength condition of high degree of freedom. Not only an image in same size can be merely transferred, but also a magnified image can be transferred. Thus the processing technique of a near-field image is improved. Small rods are erected at predetermined spacing with one another on a two-dimensional plane. At least the exterior surface of each small rod is made of a predetermined material having a dielectric constant ∈m meeting the condition “∈m≦−∈d” where ∈d is the dielectric constant of the surrounding medium. The axes of the small rods can be extended to a predetermined direction with respect to the two-dimensional plane. An optical near-field is incidented to one end of each small rod.