Stable generation of high-order harmonics of femtosecond laser radiation from laser produced plasma plumes at 1 kHz pulse repetition rate

被引:54
|
作者
Hutchison, Christopher [1 ]
Ganeev, Rashid A. [1 ]
Witting, Tobias [1 ]
Frank, Felix [1 ]
Okell, William A. [1 ]
Tisch, John W. G. [1 ]
Marangos, Jon P. [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1364/OL.37.002064
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Wepresent a method for the creation of stable weakly ionized plasmas from laser ablation of solid targets using a 1 kHz pulse repetition rate laser, which can be used for stable high-order harmonic generation from plasma plumes. The plasma plumes were generated from cylindrical rotating targets. Without target rotation the intensity of harmonics in the 40-80 nm range drops by more than one order of magnitude during less than 10(3) shots, while, with rotation of the target at typically 30 revolutions per minute, stable emission of high-order harmonics from aluminum plasma plumes with variation of less than 10% was maintained for > 10(6) laser shots. (C) 2012 Optical Society of America
引用
收藏
页码:2064 / 2066
页数:3
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