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| 双光子共振四波差频产生的真空紫外激光特性研究 | |
| 作者单位： | 中国科学院选键化学开放研究实验室,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开放研究实验室,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开放研究实验室,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开放研究实验室,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开放研究实验室,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开放研究实验室,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开放研究实验室,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： | 真空紫外激光 四波混频 Xe气 |
Characteristic Study on VUV Laser Generated by Two-Photon Resonant Four Wave Mixing in Xenon |
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| Authors: | Li Qifeng Wang Hua Shi Yong Dai Jinghua Liu Shilin Yu Shuqin Ma Xingxiao |
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| Abstract: | The character of tunable Vacuum-Ultraviolet（VUV）laser generated by two-photon resonant four wave difference frequency mixing in Xenon was studied. The intense VUV laser was generated in the wavelength range of 151-171 nm using 6P［1/2，0］level of Xe atom as the two-photon resonant state. The pulse intensity of VUV laser was estimated to be 0.2 μJ，and the conversion efficiency relative to the wavelength-fixed laser was determined to be 0.1%. The line width of VUV laser was found to be 0.3 cm-1 from the laser-induced fluorescence spectrum of A-X（0，0）rotational line profiles of jet-cooled CO，which was much broader than those of the two employed dye lasers（0. 1 cm-1），mainly due to the saturation broadening of Xe level by intense laser field. The dependencies of VUV intensity on Xe pressure and two dye laser intensities were also investigated in this experiment. |
| Keywords: | VUV，Two-photon resonant four wave mixing，Xe |
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