| 摘要 |
In a laser using an electrical discharge produced between a pair of electrodes a catalyst is used for the recombination of gain medium components dissociated by the discharge. The catalyst material is confined by a catalyst container made of conductive material. The container has apertures smaller than the smallest catalyst particle and bigger than the molecule size of the gain medium. The conductive surface forms a cage which protects the catalyst, usually a powder, from the dispersing effects of the large electric fields present in the laser, and the aperture size allows the gain medium to contact the catalyst while preventing the catalyst powder from dispersing throughout the laser. The cage is placed adjacent the region in which the discharge takes place. Preferably, the cage is placed in contact with one of the electrodes in order to transfer heat from the electrode to the catalyst. With such an arrangement, the discharge is sufficient to cause a portion of the gain medium to pass over the catalyst and the increased temperature of the catalyst improves the effectiveness of the catalyst on the recombination rate.
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