Observation of Atomic Emission Enhancement by fs-ns Dual-Pulse Laser-Induced Breakdown Spectroscopy

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2006,（1）
• 页码范围: 73-74
• 页数: 2页
• 语种: 英文

摘要

An experiment of a 500-fs KrF laser pulse incident upon a high density supersonic O2 gas jet synchronously with an ns frequency-doubled Nd:YAG laser pulse is performed in orthogonal configuration.Significant atomic emission enhancement of over forty-fold is observed with an optical multi-channel analyser.The enhancement effect is probably attributed to the different ionization mechanisms between fs and ns laser pulses.