指出三光子离化过程使三次谐波转换效率降低。
It is shown that the three photon ionization will be a limiting process in third-harmonic generation.
计算到三阶微扰项，其结果可用于双光子及三光子共振过程。
The first three terms of the perturbation are obtained, which can be used for two or three photon resonant processes.
本文报道用双色三光子共振电离法测量钐原子高激发态78个新能级。
The paper reports the measurement of 78 high-lying levels in samarium atoms by two-colour three-photon resonant ionization.
本文研究了适合于共振激光消融质谱的铜原子的二步三光子共振电离过程。
This paper discusses the process of resonant laser ablation (RLA), where the two step three photon resonant ionization of copper is considered as the best scheme.
给出了利用三色三光子激光共振电离光谱技术研究铈原子偶宇称自电离态的结果。
This paper describes the investigation of even-parity autoionization states of cerium atoms by three-step three-color resonance ionization spectroscopy (RIS).
观察到了三光子吸收及所伴随的自由载流子的激发态吸收，并测得了三光子吸收系数。
Three-photon absorption and subsequent excited state absorption of the generated electrons and holes have been observed.
基于光电子成像光谱技术原理，研究了双光子共振三光子电离方法获得的光电子成像图谱。
Based on the principle of the photoelectron imaging spectrometry, the photoelectron image is investigated by using two-photon resonance and three-photo ionization.
本文从非平衡统计理论出发，讨论了三光子参量系统中泵浦波、信号波和空闲波之间的非线性波-波相互作用。
In this paper, the nonlinear wave-wave interactions among the "pump" wave, "signal" wave aud "idle" wave have been discussed, starting from nonequilibrium theory.
以蒽-卟啉-蒽分子为例，从激发态之间的跃迁密度分析发现，分子内电荷转移过程可以极大地增强三光子吸收。
Taking anthracene-porphyrin-anthracene triads as example, we found that the intra-molecular charge transfer process can largely enhance the three-photon absorption cross-section.
结果表明，在三光子 参量过程中也存在着一个临界值，即阈值，且当驱动强度超过临界值之后，便呈现出从无序到有序的转变。
The result shows that there exists a critical value, when the driving strength is over it, the transition from disorder to order will occur.
更重要的是，我们首次发现了Er0.3 Gd 0.7 VO4晶体材料的可见激发的三光子的有效的红外量子剪裁现象和浅紫外激发的四光子的有效的红外量子剪裁现象。
Especially, an effective three-photon and four-photon infrared quantum cutting of Er0.3Gd0.7VO4 crystalline excited by visible and near-violet light are found for the first time in the present paper.
更重要的是，我们首次发现了Er0.3 Gd 0.7 VO4晶体材料的可见激发的三光子的有效的红外量子剪裁现象和浅紫外激发的四光子的有效的红外量子剪裁现象。
Especially, an effective three-photon and four-photon infrared quantum cutting of Er0.3Gd0.7VO4 crystalline excited by visible and near-violet light are found for the first time in the present paper.
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