2016年3月
Simultaneous Measurements of Superradiance at Multiple Wavelength from Helium Excited States: II. Analysis
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
- 巻
- 85
- 号
- 3
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.7566/JPSJ.85.034301
- 出版者・発行元
- PHYSICAL SOC JAPAN
Previous experimental studies of superradiance (SR) in multi-level systems have been explainable using the predictions of the well-known simple two-level SR model. However our recent study [K. Nakajima et al., J. Phys. Soc. Jpn. 84, 054301 (2015)] using EUV free-electron laser excitation of helium atoms, where SR was observed at wavelengths of 502, 668, and 728 nm, revealed behaviour which necessitates a full multi-level treatment of the SR development. In this paper, we report simulations of the initial excitation by the FEL pulses, and the subsequent development of multi-level SR. The results of the simulation reproduce the experimental findings, and reveal that competitive SR on two transitions with a common upper level plays an important role in the development of the system.
- リンク情報
- ID情報
-
- DOI : 10.7566/JPSJ.85.034301
- ISSN : 0031-9015
- Web of Science ID : WOS:000371091100009