| 摘要 |
A surface plasmon detection device (1) is provided with: a surface plasmon element (60) that includes a dielectric member having a main surface and a metallic thin film formed on the main surface and reflects, through the surface plasmon phenomenon at the interface of the dielectric member and metallic thin film, incident light (L1) comprising a light beam having an angle of incidence distribution as reflected light (L2) comprising a light beam having angularly dependent light amounts; a projection unit (2) for projecting the incident light (L1) toward the surface plasmon element (60); and a light reception unit (3) for receiving the reflected light (L2) reflected by the surface plasmon element (60). The light reception unit (3) has a light reception area configured such that light amounts varying according to light amount distribution differences resulting from the angular dependency of the reflected light (L2) are detected. |
