机构地区: 中国科学院上海光学精密机械研究所
出 处: 《物理学报》 2004年第7期2316-2319,共4页
摘 要: 提出了采用双脉冲机理来产生阿秒脉冲的方法 .研究发现采用双脉冲不仅可以产生单个的阿秒脉冲 ,从而突破目前产生阿秒脉冲的驱动源 (几个飞秒的超短激光脉冲 )的能量限制 ,而且在相同的峰值强度下 ,双脉冲能够产生强度更高的阿秒脉冲 . The scheme of attosecond high-order harmonic generation driven by a two-pulse laser field is proposed. Calculated results show that, not only a single attosecond x-ray pulse can be produced with two pulses, which may break the energy limitation of the few-cycle pulse, but also the intensity is even higher than that generated by a single laser pulse with the same intensity.
关 键 词: 阿秒脉冲 双脉冲机理 高次谐波 激光物理 转换效率
领 域: [电子电信]