Accurate determination of the absolute phase and temporal-pulse phase of few-cycle laser pulses

• 来源期刊: 中国物理（英文版）
• 关键词: absolute phase temporal-pulse phase few-cycle laser pulse Fourier analysis
• 年，卷（期）: 2007,（2）
• 页码范围: 472-477
• 页数: 6页
• 语种: 英文

摘要

A Fourier analysis method is used to accurately determine not only the absolute phase but also the temporalpulse phase of an isolated few-cycle (chirped) laser pulse. This method is independent of the pulse shape and can fully characterize the light wave even though only a few samples per optical cycle are available. It paves the way for investigating the absolute phase-dependent extreme nonlinear optics, and the evolutions of the absolute phase and the temporal-pulse phase of few-cycle laser pulses.