Localized surface plasmon resonance chip and localized surface plasmon resonance sensor for sensor

摘要

PROBLEM TO BE SOLVED: To provide a chip for a high sensitivity localized surface plasmon resonance sensor.SOLUTION: A structure body in which a chip for a localized surface plasmon resonance sensor has a plane part and a cylindrical body, and the cylindrical body is erected with an opening faced to the plane of the plane part, and the average inner diameter of the opening of the cylindrical body is ranging from 5 nm or more to 2,000 nm or less, and the rate (A/B) of an inner diameter A of the opening of the cylindrical body to an inner diameter B at an intermediate point of depth from the opening of the cylindrical body is ranging from 1.00 or more and 1.80 or less, and the bottom part of the cylindrical body is an aspheric surface, is formed on a substrate. A metallic layer is formed such that at least a part of the surface of the structure is covered, and that the structure of the structure body is reflected.