Microchip and method for producing the same, and a multi-channel fluorescence detection system

With efficient simultaneous laser irradiation fluorescence detection for a plurality of channels of the microchip, to allow simple and highly sensitive parallel analysis of multiple samples. Inside the microchip 1 consisting of members m Here, selecting m m In a state of focused laser beam 4, along the arrangement plane, it is irradiated perpendicularly to each channel 2, since the refraction effect of the channel 2 of the laser beam 4, the refractive effect of the channel 3 is canceled, the laser beam 4 is straight on sequence plane, it is possible to simultaneously irradiate an efficient laser beam of each channel 2,3. In a direction perpendicular to the array plane, a condenser lens 9, the filter and the diffraction grating 10, independently and the fluorescence emitted using an imaging lens 11, a 2-dimensional sensor 12 and the data analyzer 13, from the channels 2 and 3 It is detected at the same time.