| 低频激光场中二能级原子的高次谐波 |
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| 引用本文： | 屈卫星,余 玮,胡素兴,徐至展. 低频激光场中二能级原子的高次谐波[J]. 物理学报, 1998, 47(9): 1458-1464 |
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| 作者姓名： | 屈卫星 余 玮 胡素兴 徐至展 |
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| 作者单位： | 中国科学院上海光学精密机械研究所强光光学开放研究实验室，上海 201800 |
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| 摘 要： | 在外场频率远远低于能级跃迁频率的情况下，推导出了二能级原子在低频激光场作用下的诱导极化所满足的运动方程，并通过在弱场和超强场两种情况下对该方程的解析求解，得到了在这两种相应情况下产生于二能级原子的高次谐波的特性.关键词：
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| 关 键 词： | 原子 高次谐波 低频 激光场 二能级 |
| 收稿时间： | 1998-01-20 |
HIGH-ORDER HARMONICS FROM TWO-LEVEL ATOMS IN LASER FIELD WITH LOW-FREQUENCY |
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| QU WEI-XING,YU WEI,HU SU-XING and XU ZHI-ZHAN. HIGH-ORDER HARMONICS FROM TWO-LEVEL ATOMS IN LASER FIELD WITH LOW-FREQUENCY[J]. Acta Physica Sinica, 1998, 47(9): 1458-1464 |
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| Authors: | QU WEI-XING YU WEI HU SU-XING XU ZHI-ZHAN |
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| Abstract: | This paper derives the equation of motion followed by the induced polarization of the two-level atoms subject to the laser field with frequency much lower than that of the transition between the levels.With the approximate solution to the equation of motion under the conditions of the weak external field and of the ultra-intense one,we obtain the characteristics of the corresponding high-order harmonics from the two-level atoms. |
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