| 摘要 |
<p>Provided is a surface plasmon enhanced fluorescence sensor and light collecting member used for the surface plasmon enhanced fluorescence sensor preventing degradation of the S/N value caused by lowered light collecting efficiency and broadening of the gap between an reaction layer and a photodetecting means, obviating the need for focusing unlike a lens, and minimizing the production cost. The light collecting member used for the surface plasmon enhanced fluorescence sensor, wherein an exciting light is applied to one surface of a metal thin film, the electric field on the metal thin film is enhanced, a fluorescent substance of the reaction layer formed on the other surface of the metal thin film is excited, and thereby the enhanced fluorescence is detected by a photodetecting means. The light collecting member is disposed between the reaction layer and the photodetecting means and configured from a total-reflection functional member for collecting the excited fluorescence and causing the fluorescence to reach the photodetecting means under the total reflection condition.</p> |
