Dense plasma channel generation in air using femtosecond-picosecond laser pulse sequences
Lasers and Electro-Optics（2013）
摘要
We densify dilute plasma in femtosecond laser filaments by heating it with energetic 200 picosecond-long laser pulses. Differently from the case of nanosecond heating, the densified plasma channels, under certain conditions, remain smooth and continuous.
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关键词
high-speed optical techniques,plasma heating by laser,plasma production by laser,air,dense plasma channel generation,femtosecond-picosecond laser pulse sequences,nanosecond laser heating,heating,plasmas
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