| 摘要 |
PURPOSE:To obtain a sufficient energy quantity required for an observation by placing a sample to which a light is projected, on the front position of a concave mirror on an optical axis line, and providing an optical sensor on a focal position of a reflected light of the concave mirror for receiving a scattered light emitted by the sample. CONSTITUTION:A reflector surface 4 of a troidal concave mirror 3 is a troidal surface, and this concave mirror 3 is inclined and set against an optical axis of a laser light B of a prescribed wavelength oscillated by a laser light source 6 provided on the back, and a laser light is irradiated through a condensing optical lens system L3 in a through-hole 5 of the center of the concave mirror 3. A sample T is installed at a position on an optical axis line of the laser light B, irradiated by the laser light B, and emits scattered lights (shown by a one point chain line in the figure) of various wavelengths. This scattered light is projected to the mirror surface 4, reflected at an almost right angle against the optical axis, and converged to an optical sensor 2 such as a photomultichip, etc. placed at a focal position of the troidal mirror surface 4. |
