PHOTODETECTOR AND JIG FOR SAMPLE HOLDER

摘要

A photodetector (1) comprising an integrating-sphere (20) for observing light to be measured generated by irradiating a sample with excitation light, and a sample holder (60) removably fixed to the integrating-sphere (20), wherein the integrating-sphere (20) is provided with an excitation light introduction hole (201) for introducing the excitation light, and a sample introduction hole (205) for introducing a cell (C) held by the sample holder (60). The sample holder (60) is latched to the sample introduction hole (205) and holds the cell (C) for containing the sample, and the cell (C) is arranged such that the plane of incidence of the excitation light to the cell inclines against a plane perpendicular to the optical axis (L) of the excitation light.