Field-induced time modulation and bunching effects in photodetachment microscopy
文献类型：期刊论文
| 作者 | Yang, B. C.; Du, M. L.
|
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2023 |
| 卷号 | 108期号:2页码:23119 |
| 关键词 | ELECTRON-AFFINITIES FLUX |
| ISSN号 | 2469-9926 |
| DOI | 10.1103/PhysRevA.108.023119 |
| 英文摘要 | We present a theoretical study of the image manipulation induced by an additional oscillating electric field in traditional photodetachment microscopy. We find that the spatial electron interference image on the detecting screen perpendicular to the field is now time modulated and it varies with the oscillating field periodically. With the oscillating-field strength comparable to the static-field strength, we identify an electron bunching effect in the time domain where the electrons detached in a large time window reach the detector in a very narrow time window due to the underlying dynamics, resulting in a high concentration of detached electrons near certain observation time windows. The spatial interference images for any observational time in the narrow window show a high-intensity ring or center depending on the different electron sources. Furthermore, when the period of the oscillating field is much smaller than the flight time of the detached electrons from the negative ions to the detector, the oscillating field has a strong effect on the center of the images. On the other hand, when the oscillating-field period is comparable to or larger than the flight time of the detached electrons, the edge and the size of the interference images on the screen can be greatly modified. The accumulated electron images over time are also studied and explained using Bessel functions and stationary phase approximations. |
| 学科主题 | Optics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27980]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.[Yang, B. C.] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China 2.[Du, M. L.] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, B. C.,Du, M. L.. Field-induced time modulation and bunching effects in photodetachment microscopy[J]. PHYSICAL REVIEW A,2023,108(2):23119. |
| APA | Yang, B. C.,&Du, M. L..(2023).Field-induced time modulation and bunching effects in photodetachment microscopy.PHYSICAL REVIEW A,108(2),23119. |
| MLA | Yang, B. C.,et al."Field-induced time modulation and bunching effects in photodetachment microscopy".PHYSICAL REVIEW A 108.2(2023):23119. |
入库方式： OAI收割
来源：理论物理研究所
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