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Updated: Feb 21, 2026

Picometer-Precision Atomic Position Tracking through Electron Microscopy
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Published on: July 3, 2021

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毫米尺度的错误校正与频率适应性停留时间优化在现场大小的离子束计算

Peng Ji, Wa Tang, Haixiang Hu

    Optics express
    |February 20, 2026
    PubMed
    概括

    一种新的频率适应性停留时间优化方法提高了离子束计算 (IBF) 精度和光学制造效率. 这种方法有效地纠正毫米尺度的错误,通过预补偿材料移除,减少加工时间.

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    When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
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