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

来源：

OPTICS LETTERS | 2012年 / 37卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

Femtosecond lasers - Harmonic analysis - Laser ablation - Laser produced plasmas - Thermal plumes;

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

页码：2064 / 2066

页数：3