飞秒激光脉冲在正色散固体材料中的自压缩
文献类型：期刊论文
| ; | |
| 作者 | 陈晓伟 ; 朱毅 ; 刘军 ; 冷雨欣 ; 葛晓春 ; 李儒新 ; 徐至展 |
| 刊名 | 物理学报
 |
| 出版日期 | 2005 |
| 卷号 | 54期号:11页码:5178 |
| 关键词 | 超短激光脉冲 ultra-short laser pulse 脉冲压缩 pulse compression 非线性传输 nonlinear propagation 飞秒激光脉冲 压缩现象 色散补偿 固体材料 入射光强 脉冲强度 固体介质 脉冲压缩 传输过程 |
| ISSN号 | 1000-3290 |
| 其他题名 | Self-compression of ferntosecond laser pulses in normally dispersive solid material |
| 中文摘要 | 实验研究了正色散固体介质中的激光脉冲自压缩现象，证明了无需任何外加色散补偿情况下，固体透明介质中的自聚焦传输过程可使高功率飞秒激光脉冲实现时域脉冲压缩，并详细研究了输出脉冲的时域和频域特性随入射脉冲强度的演化规律．实验结果表明脉冲自压缩量随入射脉冲强度的增加呈递增趋势，然而当入射光强增大到足以引起超连续谱及锥形辐射产生时，脉冲时域形状会发生分裂．此外还发现发散光束入射情况下同样可以观察到脉冲自压缩现象．; We have experimentally demonstrated the self-compression of gegawatt high power femtosecond laser pulses in normally dispersive solid bulk media. It was proved that high-power femtosecond laser pulses can be compressed during the self-focusing propagation in the transparent nonlinear medium. The self-compression behavior was investigated in detail under a variety of experimental conditions, and the temporal and spectral characteristics of resulted pulses are found to be significantly affected by the input pulse intensity, with higher intensity corresponding to shorter compressed pulse. However, the output pulse is split into two peaks when the input intensity is high enough to lead to supercontinuum and conical emission. By the propagation in a piece of BK7 glass, a self-compression from 50fs to 20fs is achieved, with a compression factor of about 2.5. Moreover, we find that pulse self-compression can be achieved with a divergent input laser beam into the glass. |
| 学科主题 | 激光技术;激光物理与基本理论 |
| 分类号 | TN24 S646.6 |
| 收录类别 | ei |
| 语种 | 中文 |
| 公开日期 | 2009-09-18 ; 2010-10-12 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/338]  |
| 专题 | 上海光学精密机械研究所_强场激光物理国家重点实验室 |
| 推荐引用方式 GB/T 7714 | 陈晓伟,朱毅,刘军,等. 飞秒激光脉冲在正色散固体材料中的自压缩, Self-compression of ferntosecond laser pulses in normally dispersive solid material[J]. 物理学报,2005,54(11):5178, 5183. |
| APA | 陈晓伟.,朱毅.,刘军.,冷雨欣.,葛晓春.,...&徐至展.(2005).飞秒激光脉冲在正色散固体材料中的自压缩.物理学报,54(11),5178. |
| MLA | 陈晓伟,et al."飞秒激光脉冲在正色散固体材料中的自压缩".物理学报 54.11(2005):5178. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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