Advanced properties of extended plasmas for efficient high-order harmonic generation

被引：23
作者：
Ganeev, R. A. [1 ,2 ]
Suzuki, M. [1 ]
Kuroda, H. [1 ]
机构：
[1] Saitama Med Univ, Ophthalmol & Adv Laser Med Ctr, Saitama 3500495, Japan
[2] Voronezh State Univ, Dept Phys, Voronezh 394006, Russia
来源：
PHYSICS OF PLASMAS | 2014年 / 21卷 / 05期
关键词：
OPTIMIZATION; ENHANCEMENT;
D O I：
10.1063/1.4875738
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We demonstrate the advanced properties of extended plasma plumes (5 mm) for efficient harmonic generation of laser radiation compared with the short lengths of plasmas (similar to 0.3-0.5 mm) used in previous studies. The harmonic conversion efficiency quadratically increased with the growth of plasma length. The studies of this process along the whole extreme ultraviolet range using the long plasma jets produced on various metal surfaces, particularly including the resonance-enhanced laser frequency conversion and two-color pump, are presented. Such plasmas could be used for the quasi-phase matching experiments by proper modulation of the spatial characteristics of extended ablating area and formation of separated plasma jets. (C) 2014 AIP Publishing LLC.
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页数：7
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