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Updated: Jun 29, 2025

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
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散射扫描频率解决的光学门,用于检查脉冲检索的一致性

Mariem Guesmi1, Petra Veselá1, Karel Žídek1

  • 1Regional Center for Special Optics and Optoelectronic Systems (TOPTEC), Institute of Plasma Physics, Czech Academy of Science v.v.i., Za Slovankou 1782/3, 182 00 Prague 8, Czech Republic.

The Review of scientific instruments
|April 2, 2024
PubMed
概括

分散扫描FROG (D-FROG) 能够有效地识别超快激光脉冲的形状变化. 这种新方法增强了传统的频率分辨光学门 (FROG) 以实现更准确的激光脉冲表征.

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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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