抄録
An undulator is a device widely used in synchrotron light sources to produce a certain quasi-monochromatic light; however, its waveform has never been recorded due to the lack of measurement techniques. Here we propose an approach to characterize the waveforms of electric fields produced by relativistic electrons using an algorithm of spectral phase interferometry for direct electric-field reconstruction, which is one of the most common methods to characterize ultrashort laser pulses. As a result, we have succeeded in retrieving a 10-cycle square enveloped electric field, which corresponds to 10 periods of permanent magnets of the undulator. This method can dramatically improve the development of synchrotron sources including x-ray free electron lasers.
本文言語 | 英語 |
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ページ(範囲) | 302-307 |
ページ数 | 6 |
ジャーナル | Optica |
巻 | 10 |
号 | 2 |
DOI | |
出版ステータス | 出版済み - 2023/02 |
ASJC Scopus 主題領域
- 電子材料、光学材料、および磁性材料
- 原子分子物理学および光学