Patent ID: 6285020
Filing Date: 2001-09-04
Classification: B82Y,G01Q,G02B

Abstract:
An apparatus for enhanced light transmission comprising:a metal film having a first surface and a second surface, at least one aperture provided in the metal film and extending from the first surface to the second surface;a first dielectric layer having a first refractive index, the first dielectric layer being substantially adjacent to the first surface of the metal film; anda second dielectric layer having a second refractive index, the second dielectric layer being substantially adjacent to the second surface of the metal film, wherein the second refractive index is substantially equal to the first refractive index, and whereby light incident on one of the surfaces of the metal film interacts with a surface plasmon mode on at least one of the surfaces of the metal film thereby enhancing transmission of light through the at least one aperture in the metal film.