| Neutral dissociation of methane in the ultra-fast laser pulse |
| |
| 基金项目： | Supported by the National Basic Research Program of China (Grant No. 2006CB806000) |
| |
| 摘 要： | Neutral fragments of methane were performed using femetosecond laser at an intensity of 10^（13-14） W/cm^2. A new mechanism of neutral dissociation is proposed in this work. The methane molecule is excited to super-excited states, in which it would dissociate into neutral fragments. We made Morse type potential energy surfaces for the super-excited molecules. Furthermore, we investigated the dissociation dynamics of the super-excited states by using quasi-claseical trajectory （QCT） method. The results thus interpret the neutral dissociation of the methane molecule in the ultra-fast laser pulse.
|
| 关 键 词： | 激光脉冲 激光场 中性解离 摩尔斯式电码 |
| 收稿时间： | 4 October 2006 |
| 修稿时间： | 2008-01-04 |
Neutral dissociation of methane in the ultra-fast laser pulse |
| |
| Authors: | Di Song Kai Liu FanAo Kong AnDong Xia |
| |
| Institution: | (1) Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China;(2) Graduate University of Chinese Academy of Sciences, Beijing, 100049, China |
| |
| Abstract: | Neutral fragments of methane were performed using femetosecond laser at an intensity of 1013-14 W/cm2. A new mechanism of neutral dissociation is proposed in this work. The methane molecule is excited to super-excited states,in which it would dissociate into neutral fragments. We made Morse type potential energy surfaces for the super-excited molecules. Furthermore,we investigated the dissociation dy-namics of the super-excited states by using quasi-classical trajectory (QCT) method. The results thus interpret the neutral dissociation of the methane molecule in the ultra-fast laser pulse. |
| |
| Keywords: | ultra-fast laser pulse intense laser fields neutral dissociation Morse potential quasi-classical trajectory |
| 本文献已被 维普 SpringerLink 等数据库收录！ |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 |
