On a substrate 41 holding a sample to be detected, a dielectric multilayer
42 is disposed which reflects excitation light e1 supplied from above the
substrate 41 and transmits fluorescence f1 emitted from the sample, and
the excitation light e1 is reflected at the dielectric multilayer 42
while the transmitted fluorescence f1 is detected by a light receiving
unit 44, thereby providing a fluorescence measurement apparatus which can
resolve a problem of reduction in detection sensitivity due to
autofluorescence from the substrate or leakage of the excitation light
from a light receiving filter, and which can detect the sample with high
sensitivity.