Ultra Short Laser 超短脉冲激光 ; 超短光
ultra-short laser pulse 超短激光脉冲
ultra-short laser pulses 超短激光脉冲 ; 超短脉冲激光
ultra-short laser pule 超短脉冲激光
Ultra short laser pulse 超短激光脉冲
ultra short laser field 超短激光场
ultra-intense ultra-short laser 超强超短激光
super-intense ultra-short laser 超短超强激光
ultra-intense and ultra-short laser 超强超短脉冲激光
When sub-picosecond ultra-short laser pulses irradiated on materials, electrons can be excitated from valence band to conductive band by the incident laser pulse, and the electron density can reach vary high level （10211022/cm3）.
而在第六章中,基于对前一章内容的总结,并在深入查阅大量相关文献的基础上,对各类半导体材料的激光损伤机制及其过程等有了更深一步的认识:当亚皮秒超短脉冲激光与材料相互作用时,入射激光可以将材料价带中的电子激发到导带上去,并可以使激发出的电子具有非常高的密度（10211022/cm3）和温度（>=1000K）。
参考来源 - 飞秒脉冲激光对固体材料热损伤的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The stability of output energy is an important parameter for ultra-short laser facility.
输出能量的稳定性是超短脉冲激光装置的一个重要指标。
High signal-to-noise ratio have important meaning in the ultra-short laser interacting with material.
高信噪比在超短脉冲强激光与物质相互作用中有重要意义。
The conversion efficiency and the beam quality are two main contents in research of harmonic generation of ultra-short laser.
在超短脉冲激光倍频技术研究中，倍频转换效率和倍频光的光束质量这两个问题一直是研究的核心内容。
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