发明授权
- 专利标题： Nanoparticle production in liquid with multiple-pulse ultrafast laser ablation
- 专利标题（中）： 多脉冲超快激光烧蚀液中纳米粒子生产
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申请号： US12951423申请日： 2010-11-22
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公开(公告)号： US08858676B2公开(公告)日： 2014-10-14
- 发明人: Bing Liu , Zhendong Hu , Yong Che , Makoto Murakami
- 申请人： Bing Liu , Zhendong Hu , Yong Che , Makoto Murakami
- 申请人地址： US MI Ann Arbor
- 专利权人： IMRA America, Inc.
- 当前专利权人： IMRA America, Inc.
- 当前专利权人地址： US MI Ann Arbor
- 代理机构： Dickinson Wright PLLC
- 主分类号： B22F9/14
- IPC分类号： B22F9/14 ; B01J19/12 ; B22F9/04 ; B22F1/00
摘要：
A method for generating nanoparticles in a liquid comprises generating groups of ultrafast laser pulses, each pulse in a group having a pulse duration of from 10 femtoseconds to 200 picoseconds, and each group containing a plurality of pulses with a pulse separation of 1 to 100 nanoseconds and directing the groups of pulses at a target material in a liquid to ablate it. The multiple pulse group ablation produces nanoparticles with a reduced average size, a narrow size distribution, and improved production efficiency compared to prior pulsed ablation systems.
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