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本文报道沿与光轴成90°方向拍摄的2ω0谐波时间分辨光谱。谐波的主峰与次峰是由许多细而亮的条纹组成,对此我们作了理论分析。This paper presents the time resolved spectrum with high temporal resolution (~10ps) and spectral resolution (~ 0.6?) of 2ω0 harmonic emission at 90°to the laser axis. It is shown experimentally that the primary peak and the secondary peak of 2ω0 harmonic are actually composed of many fine and bright fringes with the interval about 1.5 ~ 3? directly connected with atomic weight. Analysis and discussion on these are given.
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