Measurement of laser-induced double step ionization of helium
Measurement of laser-induced double step ionization of helium
复制标题
DOI:
10.1364/oe.10.001563
复制
发表时间:
2002-12
期刊:
影响因子:
--
通讯作者:
K. Kim;I. Alexeev;H.M. Milchherg
中科院分区:
文献类型:
--
作者:
K. Kim;I. Alexeev;H.M. Milchherg
The spatio-temporal evolution of the free electron density induced in a helium gas jet by an intense femtosecond pulse is measured with ~10 fs resolution in a ~1 ps temporal window. The double-stepionization feature is observed. In these measurements, we use the technique of single-shot supercontinuum spectral interferometry. It is demonstrated that finite laser-gas interaction lengths can strongly affect the interpretation of such measurements.