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| 四波混频过程中差频与和频的竞争研究 | |
| 作者单位： | 中国科学院选键化学重点实验室,中国科学技术大学化学物理系,合肥,230026;中国科学院选键化学重点实验室,中国科学技术大学化学物理系,合肥,230026;中国科学院选键化学重点实验室,中国科学技术大学化学物理系,合肥,230026;中国科学院选键化学重点实验室,中国科学技术大学化学物理系,合肥,230026;中国科学院选键化学重点实验室,中国科学技术大学化学物理系,合肥,230026;中国科学院选键化学重点实验室,中国科学技术大学化学物理系,合肥,230026;中国科学院选键化学重点实验室,中国科学技术大学化学物理系,合肥,230026 |
| 基金项目： | 国家重点基础研究发展计划（973计划）;国家自然科学基金 |
| 摘 要： | |
| 关 键 词： | 四波混频 VUV强度凹陷 差频与和频的竞争 |
The Competition between Two-Photon Resonance Four Wave Frequency Difference and Sum Mixings |
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| Authors: | Li Qifeng Wang Hua Shi Yong Dai Jinghua Liu Shilin Yu Shuqin Ma Xingxiao |
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| Abstract: | Tunable intense Vacuum Ultraviolet (VUV) laser was generated by two-photon resonant four wave difference frequency mixing (ω-=2ωUV-ωT) in Xenon. In the experiment some resonance attenuations of the VUV were observed at certain difference frequencies. These attenuations occur when the sum frequencies ω+=2ωUV+ωT coincide with excited ns (n=10,11) and nd (n=8~13) states. The third order linear susceptibility χ(3)（2ωUV+ωT；ωUV，ωUV+ωT） is reasonably increased by the double resonance enhancement, so the conversion efficiency of sum frequency mixing can be very high and the power of the pump laser is decreased and thus the difference frequency output is attenuated. |
| Keywords: | Four wave difference frequency mixing， VUV intensity， Competition between frequency difference and sum mixings |
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