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。
The results show that the threshold of air breakdown decreases when laser wavelength increases, while the wavelength has no evident effect on the momentum coupling coefficient.
实验结果表明，在大气呼吸模式激光推进中，空气的击穿阈值随激光波长的增大而降低，激光波长对飞行器获得的冲量耦合系数没有明显的影响。
The influences of the size of suspended particles in the medium and chemical structural characteristics of the medium on the threshold of the optical breakdown are researched experimentally.
研究了介质所含杂质悬浮颗粒的大小和介质本身化学结构特性对光学击穿阈值的影响。
However, with increasing the pulse energy, when a threshold was achieved, the breakdown time became saturation.
随着入射能量的增加，并超过某阈值时，击穿时间将达到饱和。
However, with increasing the pulse energy, when a threshold was achieved, the breakdown time became saturation.
随着入射能量的增加，并超过某阈值时，击穿时间将达到饱和。
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