| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric field enhancement element which can be applied to many kinds of target substances because of its wide wavelength region in which the degree of enhancement is large and is capable of SARS measurement of the target substance with high sensitivity. ! SOLUTION: An electric field enhancement element according to the present invention includes a metal layer, a dielectric layer formed on the metal layer, a recess formed on the dielectric layer, a first metal particle formed inside the recess, and a second metal particle formed inside the recess apart from the first metal particle and having different material quality than the material quality of the first metal particle, a distance between the bottom face of the recess and the metal layer being 20 nm and over to less than 100 nm. ! COPYRIGHT: (C)2015,JPO&INPIT |
