Patent ID: 9104031
Filing Date: 2015-08-11
Classification: G02F

Abstract:
1. An active optical device comprising: a first electrode, a second electrode, and a third electrode that each comprise a metal and are sequentially disposed spaced and are apart from one another; a first refractive index change layer disposed between the first electrode and the second electrode, wherein a refractive index of the first refractive index change layer is changed by an electric field applied thereto; a second refractive index change layer disposed between the second electrode and the third electrode, wherein a refractive index of the second refractive index change layer is changed by an electric field applied thereto; a dielectric layer disposed on the first electrode, the second electrode, and the third electrode, such that light incident on the first electrode, the second electrode, and the third electrode is incident on the first refractive index change layer or the second refractive index change layer due to generation of surface plasmon between the dielectric layer and the first electrode, the second electrode, and the third electrode; and wherein the first electrode, the first refractive index change layer, the second electrode, the second refractive change index layer, and the third electrode are sequentially disposed and spaced in a direction normal to an optical path.