| 摘要 |
PURPOSE:To change over the state, in which an output from a dye laser is obtained by the same output optical path, and the state, in which an excitation laser is acquired, through simple operation by mutually changing over condenser lenses condensing each laser for excitation under the state, in which a dye cell is fitted to a cell holder, and the state, in which the dye cell is not mounted, by a changeover mechanism. CONSTITUTION:A dye cell 1 can be set up to or dismantled from a cell holder 2 for a dye laser oscillator, a laser for excitation projected from a laser oscillator 3 for excitation is passed through the holder 2 under the state in which the cell 1 is removed. A laser for excitation passing through the holder 2 under the state in which the cell 1 is detached is projected to a mirror 8 for reflection from an auxiliary condenser lens 41 corresponding to the mirror 8 for reflection of a lens changeover mechanism 4 mounted between the holder 2 and the oscillator 3, and reflected toward a grating 6. Beams are condensed by a lens 4II for beam-condensing corresponding to the dye cell 1 of the changeover mechanism 4 under the state in which the cell 1 is fitted to the holder 2, thus simplifying changeover operation. |
