Fluctuation-Mediated Optical Screening of Nanoparticles
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- 作者：Mamoru Tamura ; Takuya Iida
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：October 10, 2012
- 年：2012
- 卷：12
- 期：10
- 页码：5337-5341
- 全文大小：339K
- 年卷期：v.12,no.10(October 10, 2012)
- ISSN：1530-6992
文摘
Inspired by biological motors, we propose a guiding principle for selectively separating nanoparticles (NPs) by efficiently using the light-induced force (LIF) and thermal fluctuations. We demonstrate the possibility of transporting metallic NPs of different sizes with a size-selection accuracy of less than 10 nm even at room temperature by designing asymmetric spatiotemporal light fields. This technique will lead to unconventional nanoextraction processes based on light and fluctuations.