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空心毛细管束缚高压气体成丝的光谱演变

Spectrum evolution of filamentation restricted by capillary in high pressure gas

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【Author】 Cao Shi-Ying 1) Wang Ying 1) Zhang Zhi-Gang 1)2) Chai Lu 1) Wang Qing-Yue 1) Yang Jian-Jun 3) Zhu Xiao-Nong 3) 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)

【机构】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；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；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300072；天津300071；

【摘要】对高能量飞秒脉冲在充氩气玻璃管中自由成丝以及有空心毛细管束缚成丝两种情况下,输入脉冲能量和空心毛细管所处成丝位置等实验参数对光谱展宽的影响进行了系统的实验研究.结果表明采用空心毛细管束缚成丝,可以使被展宽光谱在短波方向上的强度获得改善.这为进一步脉冲压缩产生高能量单周期飞秒脉冲打下基础.更多还原

【Abstract】 Filamentation with and without capillary restriction by focusing intense femtosecond pulses into the Argon-filled tube was experimentally studied in this paper. The results showed that the width of the broadened spectrum was affected by the input pulse energy and position of the capillary with respect to the filament. It was also indicated that the intensity of the short wavelength region of the spectrum was enhanced by the capillary restriction,which would be favorable to obtaining intense,monocycle pulses after compression.更多还原

【关键词】毛细管；成丝；束缚；光谱展宽；
【Key words】 capillary； filamentation； restriction； spectrum broadening；

【基金】国家自然科学基金重大项目(批准号:60490280);国家自然科学基金(批准号:60578007)资助的课题.~~

【文献出处】物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2006年09期

【分类号】TN249
【下载频次】51

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