SURFACE PLASMON ENHANCED FLUORESCENCE SENSOR, AND CHIP STRUCTURE UNIT USED FOR SURFACE PLASMON ENHANCED FLUORESCENCE SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a surface plasmon enhanced fluorescence sensor that detects an analyte with super-high precision by improving a value of S/N.;SOLUTION: There is provided a chip structure unit used for a surface plasmon enhanced fluorescence sensor 10 that detects enhanced fluorescence by irradiating a metal thin film 12 with exciting light from a light source 22 to enhance an electric field on the metal thin film, and exciting a fluorescent material held in a reaction region 40 on a reaction layer formed on an upper surface of the metal thin film. The chip structure unit 36 comprises: a chip structure 36 comprising the metal thin film 12, a dielectric member 16 formed on a bottom surface of the metal thin film, and the reaction layer having the reaction region 40 formed on the upper surface of the metal thin film; and a light collection member 34 arranged between the reaction layer of the chip structure 36 and optical detection means 30 and comprising a total reflecting function member 32 allowing the fluorescence to reach the optical detection means under total reflection conditions.;COPYRIGHT: (C)2012,JPO&INPIT