Patent ID: 7957068

Claim:
An optical near-field distribution transfer device, characterized by that: a plurality of small rods, each of which is formed by a metallic material having a substantially columnar shape and the dielectric constant ∈ m thereof meets the condition: ∈ m ≦−∈ d with respect to a dielectric constant ∈ d of a surrounding medium, wherein a diameter of the small rod is substantially equal to or less than ½ of the wavelength of the optical near-field to be input to the small rod and the small rods are erected at predetermined spacing on a two-dimensional plane in such that the axial directions of the small rods extend in predetermined directions, respectively; and an optical near-field is input to one end of each of the small rods arranged such that the plurality of small rods is erected to convert the optical near-field into a resonant electron oscillation along the small rods with respect to the optical near-field input and to transfer a localized surface plasmon polariton to the end on the opposite side of the small rods, whereby a distribution of the optical near-field is obtained on the other end of the small rods.