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Updated: Jun 16, 2025

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

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在双向超快光纤激光器中自发脉冲时间位置调制

Kai Yang, Yu-Xin Gao, Dai-Xuan Wu

    Optics express
    |June 14, 2025
    PubMed
    概括

    研究人员通过使用两个碳纳米管 (CNTs) 和吸收器 (SAs) 在双向光纤激光器中实现了自发脉冲时间位置调制. 这种方法可以控制光学系统中的脉冲定时.

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    Direct Imaging of Laser-driven Ultrafast Molecular Rotation10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

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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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