| 摘要 |
PURPOSE:To achieve the improvement of a laser oscillation efficiency, by placing electrodes so that they face each other along the shape of the laser beam excited in a discharge space. CONSTITUTION:When supplying a high-voltage high-frequency current to each of electrodes 1a and 1b from an a.c. power, a glow is produced by discharged in a discharge space between the electrodes 1a and 1b. Then, laser medium gas molecules circulating in the discharge space are excited and a part of them are taken out as a laser 10 after resonance amplification is carried out between reflecting mirrors 8 and 9. At this time, the laser beam 11 excited in the discharge space is in the taper shape, being influenced by the shape of the total reflecting mirror 8. Each of the electrodes 1a and 1b are placed along the shape of the laser beam 11. By this, dead discharge spaces 12, spaces between the laser beam 11 and the electrodes 1a and 1b, are decreased with the achievement of a good laser oscillation efficiency. |
