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Updated: Jul 9, 2025

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
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Published on: February 4, 2017

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来自自由电子激光振荡器的自然向下切割的超辐射脉冲的非线性压缩由厚厚的板进行

Heishun Zen, Ryoichi Hajima, Hideaki Ohgaki

    Optics express
    |December 2, 2023
    PubMed
    概括

    来自自由电子激光器 (FEL) 的超辐射脉冲使用板被压缩到3.7个光学周期. 这种非线性压缩实现了40%的峰值功率增强,产生了强烈的短周期红外脉冲.

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    相关概念视频

    NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

    NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

    A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
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