Patent ID: 7700937
Filing Date: 2010-04-20
Classification: H01L,H01S,Y02E,Y10S

Abstract:
1. A single-photon generating device comprising a solid substrate having a base portion and a pillar portion, said pillar portion being formed on the surface side of the base portion and having a localized level existent in the vicinity of the tip thereof, wherein the pillar portion is formed to have a larger cross section on the base portion side than the cross section on the tip side, so that the light generated from the localized level is reflected on the surface, propagated internally, and output from the back face side of the base portion, the pillar portion has a base angle in the range of 65 to 85 degrees, the base angle being formed between the pillar portion and the base portion, the pillar portion has a height from the surface of the base portion, the height being at least 10 times a light wavelength propagating in the solid substrate, and the entire pillar portion except a portion in which the localized level exists is made of a single semiconductor material.