The method of the invention can reduce the breakdown threshold, increase the ablation efficiency and prolong the life of plasma.
该方法降低了击穿阈值，提高了烧蚀效率，并能够延长等离子体的寿命。
The results show: pulse power density from CO2 laser reaches air breakdown threshold through thrice reflecting focus system, and plasma radiation phenomena is observed in the experiment.
结果表明，脉冲co 2激光功率密度经三次反射激光聚焦系统达到空气击穿阈值，实验中观察到等离子体发光现象。
By purifying the medium, the optical breakdown threshold can be increased; thus the phase-conjugation fidelity, the reflectivity of the energy and the stability of SBS increase correspondingly.
通过净化介质可提高光学击穿阈值，进而提高相位共轭保真度、能量反射率及其稳定度等SBS特性。
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