| 摘要 |
A Raman scattering observation apparatus is provided with a light source device for radiating incoherent first and second band-pass light each with the first and the second wavelengths as center wavelengths respectively, and a filter unit set to selectively extract a Raman scattering light component as a third wavelength, which contains a fluorescent component injected from an observation object to which the first and the second band-pass light are irradiated. The first and the second detection signals through the filter unit detected by the detection unit corresponding to the first and the second band-pass light are subjected to the differential process in the differential process unit.
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