| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for measuring surface plasmon resonance capable of performing measurement in addition to the phenomenon of surface plasmon resonance, to be concrete, measurement on optical absorption spectra in the same apparatus and provide an apparatus for measuring surface plasmon resonance and optical absorption spectra capable of actually measuring both surface plasmon resonance and optical absorption spectra. SOLUTION: The surface plasmon resonance measuring apparatus is provided with a slab- type waveguide comprised of a slab-type transparent substrate on which a metal membrane is formed, a light source means constituted in such a way as to introduce white light to the slab-type waveguide via an optical fiber, and a light detecting means for detecting and analyzing light emergent from the slab-type waveguide after transmitting through the slab-type waveguide. A sample is arranged on the metal membrane, and the white light is made incident into the slab-type waveguide and transmit through the slab-type waveguide through the use of the light source means. A surface plasmon phenomenon is brought about in the metal membrane, on which the sample is arranged, to detect spectral changes of the white light due to the surface plasmon phenomenon from light emergent from the slab-type waveguide through the use of the light detecting means. From the results of detection, the refractive index of the sample is measured. COPYRIGHT: (C)2003,JPO
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