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Updated: May 7, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

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可调节的CW和222 fs模式锁定激光性能 Nd:LYMO 水晶

Lijuan Chen, Yingshuang Shan, Hongqing Li

    Optics express
    |April 12, 2025
    PubMed
    概括

    这项研究揭示了新的Nd:LYMO晶体在可调和超快激光器的卓越性能. 它展示了显著的输出功率和稳定的超短脉冲,为先进的激光技术铺平了道路.

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    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy08:48

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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.