通过脉冲整形定制衍射聚焦超短脉冲的时空分布
光学
2019-05-22 v1
摘要
超短脉冲光束的聚焦控制因其对后续与物质相互作用的影响而成为重要研究课题。本工作中，我们研究时长约25 fs的超短激光脉冲在衍射聚焦下焦点附近的传播。我们对其振幅与相位进行时空-光谱与时空-时域测量，并辅以相应模拟。借此，我们证明脉冲整形不仅能以受控方式改变焦区光辐照度的时空分布，还能改变其传播方式以及脉冲内的频率分布（时间啁啾）。为获得更直观的认识，我们分析了所添加不同光谱相位分量的作用，展示了各情形中出现的对称性。特别地，我们比较了二阶与三阶色散情形的效应、相似与差异。
引用
@article{arxiv.1905.05819,
title = {Tailoring the spatio-temporal distribution of diffractive focused ultrashort pulses through pulse shaping},
author = {Benjamín Alonso and Jorge Pérez-Vizcaíno and Gladys Mínguez-Vega and Íñigo J. Sola},
journal= {arXiv preprint arXiv:1905.05819},
year = {2019}
}
备注
Information: 11 pages, 6 figures. Date of Publication: 12 April 2018. This work was partially supported by the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Action with grant agreement No. 798264, project FastMeasure entitled 'Development and industry transfer of new techniques: full characterization of vector ultrashort pulsed laser beams'