Patent ID: 8937763
Filing Date: 2015-01-20
Classification: G02B,H01S

Abstract:
1. A vertical microcavity having a layer structure perpendicular to a vertical axis z, the layer structure comprising: a first reflector and a second reflector, each comprising one or more material layers; a confinement layer between the first and second reflectors, wherein an electromagnetic wave can be substantially confined, and wherein the confinement layer comprises a body and a defect, the defect delimited by two surfaces, a first surface and a second surface, each of the two surfaces being perpendicular to the vertical axis z; wherein one of the two surfaces is contiguous with the body, the other one of the two surfaces being contiguous with a layer of the first or second reflector, and wherein one of the two surfaces is curved, such as to have a curved profile in at least a plane section perpendicular to the layer structure, the curved profile having a vertex, which defines a maximal thickness h 0 of the defect between the first surface and the second surface in the plane section, the maximal thickness h 0 being less than a thickness of the contiguous layer.