| 摘要 |
PURPOSE:To supply a metal vapor source without opening an interior with the atmosphere and to shorten a time required to reoscillate a metal vapor laser by forming a through hole at an angle crossing a discharge tube near a beam output port, and providing a flexible insertion rod telescopically rotatably with the hole and having a groovelike cutout at the end. CONSTITUTION:A through hole 21 is formed near the beam output port of a hermetically sealing vessel 1, two grooves 22, 22 are formed at the inner wall of the vessel 1 in the hole 21, a flexible insertion rod 24 having a stopper 25 and a cutout 26 at the end is provided telescopically and rotatably with the hole 21, and an O-ring 23 for sealing the rod 24 from the vessel 1 is provided. The rod 23 is rotated to dispose a recess 27 above, and a metal vapor source is filled in the recess 27. Then, the rod is inserted to a suitable position in the tube 2, the recess 27 is directed downward, and the metal vapor source is dropped in the tube. Thereafter, the cutout 26 is disposed downside, and the rod 24 is so returned as not to displace the vapor source from a predetermined position. This is repeated as required. Thus, the metal vapor source can be supplied without opening the interior of a laser body with the atmosphere. |
