Автор |
Liu Bing-Chen |
Автор |
Zhu Pin-Pin |
Автор |
Li Zhao-Hui |
Автор |
Ni Guo-Quan |
Автор |
Xu Zhi-Zhan |
Дата выпуска |
2002-05-01 |
dc.description |
Large rare gas clusters Ar<sub>n</sub>, Kr<sub>n</sub> and Xe<sub>n</sub> were produced at room temperature in the process of supersonic adiabatic expansion. The cluster size is examined by a Rayleigh scattering experiment. Power variations of the average cluster size with the gas backing pressure P<sub>0</sub> give size scaling as ∝P<sub>0</sub><sup>2.0</sup>, resulting in the largest cluster sizes which are estimated in the present work to be about 1.5×10<sup>4</sup>, 2.6×10<sup>4</sup> and 4.0×10<sup>4</sup> atoms (the corresponding diameters of the cluster spheres are about 9, 13 and 17 nm) for Ar, Kr and Xe, respectively. A time resolving Rayleigh scattering experiment was conducted to investigate the time evolution of cluster formation and decay processes. A surprising two-plateau structure of the time evolution characteristic of cluster formation and decay processes of Kr and Xe clusters was revealed as compared with a ``normal'' single structure for the case of Ar gas. In the second plateau, the intensity of the scattered light is enhanced greatly, by even as much as 62 times, over that in the first plateau, indicating a significant increase in cluster size. This finding supports the importance of nuclei in the gas condensation process and may be helpful for further insight into the phenomenon of clustering. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Size Estimation and Time Evolution of Large Size Rare Gas Clusters by Rayleigh Scattering Techniques |
Тип |
paper |
DOI |
10.1088/0256-307X/19/5/316 |
Electronic ISSN |
1741-3540 |
Print ISSN |
0256-307X |
Журнал |
Chinese Physics Letters |
Том |
19 |
Первая страница |
659 |
Последняя страница |
662 |
Аффилиация |
Liu Bing-Chen; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800 |
Аффилиация |
Zhu Pin-Pin; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800 |
Аффилиация |
Li Zhao-Hui; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800 |
Аффилиация |
Ni Guo-Quan; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800 |
Аффилиация |
Xu Zhi-Zhan; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800 |
Выпуск |
5 |