Laser‐induced air breakdown for 1.06‐μm radiation
Laser‐induced air breakdown for 1.06‐μm radiation
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1.06 μm 辐射的激光诱导空气击穿
DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
D. Lencioni
中科院分区：
文献类型：
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作者：
D. Lencioni
报道了粉尘对1.06 μm激光诱导空气击穿100 μ s脉冲的影响。清洁空气中的阈值作为光斑大小的函数进行测量，与10.6 μm的结果相比，发现其尺度为λ−2。在光束中加入单个50 μm的碳粒子，使其阈值降低到5×109 W/cm2，约为清洁空气的0.02倍。由于粉尘颗粒导致的阈值降低分数与报道的10.6 μm击穿相当。
The effects of dust on 1.06‐μm laser‐induced air breakdown for 100‐nsec pulses are reported. The thresholds in clean air were measured as a function of spot size and were found to scale as λ−2 compared to the 10.6‐μm results. A single 50‐μm carbon particle present in the beam lowered the threshold to ≃5×109 W/cm2 —a factor of approximately 0.02 that of clean air. The fractional reduction in threshold due to dust particles was comparable to that reported for 10.6‐μm breakdown.