Suppression of suprathermal ions from a colloidal microjet target containing SnO2 nanoparticles by using double laser pulses

被引：17
作者：
Higashiguchi, Takeshi
Kaku, Masanori
Katto, Masahito
Kubodera, Shoichi
机构：
[1] Utsunomiya Univ, Opt Educ Res Ctr, Grad Sch Engn, Dept Environm Sci & Energy, Utsunomiya, Tochigi 321, Japan
[2] Miyazaki Univ, Photon Sci Ctr, Dept Elect Engn & Elect, Miyazaki 88921, Japan
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 15期
关键词：
D O I：
10.1063/1.2799175
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have demonstrated suppression of suprathermal ions from a colloidal microjet target plasma containing tin-dioxide (SnO2) nanoparticles irradiated by double laser pulses. We observed a significant decrease of the tin and oxygen ion signals in the charged-state-separated energy spectra when double laser pulses were irradiated. The peak energy of the singly ionized tin ions decreased from 9 to 3 keV when a preplasma was produced. The decrease in the ion energy, considered as debris suppression, is attributed to the interaction between an expanding low-density preplasma and a main laser pulse.
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