超强飞秒激光在大气中传输时,可以形成很长的等离子体通道.对通道电阻率和测量电极与等离子体通道问的接触电阻进行了测量,并对影响等离子体通道电阻率的主要因素进行了研究分析.提出减小等离子体通道电阻的方案.
A long plasma channel can be formed when ultra-intense femtosecond laser pulse propagate, in air. We measured the value of the resistivity of the plasma channel and the contact resistance between the plasma channel and the electrodes. We also investigated the main factors affecting the resistivity of the plasma channel.