| 束缚高压强气体中成丝的空心毛细管芯径对光谱展宽的影响 |
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| 引用本文： | 曹士英,张志刚,柴路,王清月,杨建军,朱晓农. 束缚高压强气体中成丝的空心毛细管芯径对光谱展宽的影响[J]. 物理学报, 2006, 55(10): 5294-5297 |
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| 作者姓名： | 曹士英 张志刚 柴路 王清月 杨建军 朱晓农 |
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| 作者单位： | (1)南开大学现代光学研究所，光电信息技术科学教育部重点实验室，天津 300071; (2)天津大学精密仪器与光电子工程学院超快激光研究室，信息技术科学教育部重点实验室，天津 300072; (3)天津大学精密仪器与光电子工程学院超快激光研究室，信息技术科学教育部重点实验室，天津 300072;北京大学信息科学技术学院，量子信息与测量教育部重点实验室，北京 100871 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 采用空心毛细管束缚强飞秒激光脉冲在高压强气体中产生的成丝时，空心毛细管芯径对光谱展宽有着重要的影响. 研究了空心毛细管束缚成丝时，空心毛细管芯径对光谱展宽的影响. 结果表明，在低能量(0.4mJ)入射时，光谱展宽主要由成丝引起，而在高能量(1.3mJ)入射时，空心毛细管起到光波导效应参与了光谱展宽. 当能量介于二者之间时，采用芯径较小的空心毛细管，可以获得更好的光谱展宽效果. 关键词：毛细管成丝束缚光谱展宽
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| 关 键 词： | 毛细管 成丝 束缚 光谱展宽 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006-03-06 |
Dependence of spectrum broadening on inner diameter of capillary restricting the filamentation in high pressure gas |
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| Cao Shi-Ying,Zhang Zhi-Gang,Chai Lu,Wang Qing-Yue,Yang Jian-Jun,Zhu Xiao-Nong. Dependence of spectrum broadening on inner diameter of capillary restricting the filamentation in high pressure gas[J]. Acta Physica Sinica, 2006, 55(10): 5294-5297 |
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| Authors: | Cao Shi-Ying Zhang Zhi-Gang Chai Lu Wang Qing-Yue Yang Jian-Jun Zhu Xiao-Nong |
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| Affiliation: | 1. Key Laboratory of Optoelectronic Information Technical Science, Ministry of Education, China ; Ultrafast Laser Laboratory, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China ;2. Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China ;3. Institute of Modern Optics, Nankai University, Key Laboratory of Optoelectronic Information Science and Technology, EMC , Tianjin 300071, China |
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| Abstract: | Inner diameter of capillary has important effect on the spectrum broadening when used to restrict filamentation in high pressure gas. In this paper, the dependence of spectrum broadening on the inner diameter of the capillary was experimentally studied. The results showed that the spectrum broadening was mainly due to filamentation at low pulse energy (0.4mJ) and the guide effect of capillary at high pulse energy (1.3mJ). Between these pulse energy levels, the capillary with a smaller diameter can result in much better spectrum broadening. |
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| Keywords: | capillary filamentation restriction spectrum broadening |
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