Plasmonic nanobubbles as transient vapor nanobubbles generated around plasmonic nanoparticles.
Plasmonic nanobubbles as transient vapor nanobubbles generated around plasmonic nanoparticles.
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DOI：
10.1021/nn1000222
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发表时间：
2010-04-27
期刊：
影响因子：
17.1
通讯作者：
Lapotko DO
中科院分区：
文献类型：
--
作者：
Lukianova-Hleb E;Hu Y;Latterini L;Tarpani L;Lee S;Drezek RA;Hafner JH;Lapotko DO
我们使用短激光脉冲在等离子体纳米粒子周围产生瞬态蒸汽纳米气泡。发现这类气泡的光热、机械和光学特性与等离子体纳米粒子以及蒸汽气泡均有所不同。这种现象被视为一种新的复杂纳米系统——等离子体纳米气泡（PNB）。PNB的机械和光学散射特性取决于纳米粒子表面、热容量、聚集状态以及光脉冲长度。PNB的产生所需的激光脉冲能量密度阈值比爆炸沸腾水平高得多，并且其特征在于PNB最小尺寸（寿命）的下限阈值相对较高。PNB的光散射及其直径（以寿命衡量）随激光脉冲能量密度而变化，这表明了PNB的可调谐性质。
We have used short laser pulses to generate transient vapor nanobubbles around plasmonic nanoparticles. The photothermal, mechanical and optical properties of such bubbles were found to be different from those of plasmonic nanoparticle and vapor bubbles as well. This phenomena was considered as a new complex nanosystem – plasmonic nanobubble (PNB). Mechanical and optical scattering properties of PNB depended upon the nanoparticle surface and heat capacity, clusterization state, and the optical pulse length. The generation of the PNB required much higher laser pulse fluence thresholds than the explosive boiling level, and was characterized by the relatively high lower threshold of the minimal size (lifetime) of PNB. Optical scattering by PNB and its diameter (measured as the lifetime) has been varied with the fluence of laser pulse and this has demonstrated the tunable nature of PNB.
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影响因子：
3.5
作者：
Hleb, E. Y.;Lapotko, D. O.
通讯作者：
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影响因子：
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