水性金纳米粒子胶体中的高度伸展细丝。

Highly extended filaments in aqueous gold nano-particle colloidals.

作者信息

Yuan Shuai, Liu Feng J, Wang Li R, Nan Jun Y, Li Min, He Bo Q, Zeng He P

机构信息

Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.

China State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China.

出版信息

Sci Rep. 2018 Apr 13;8(1):5957. doi: 10.1038/s41598-018-24479-9.

DOI:10.1038/s41598-018-24479-9

PMID:29654307

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5899100/

Abstract

A new regime of filamentation has been discovered in aqueous gold nanoparticle colloidals (AGNC). Different from filamentation in liquids, in this regime, by doping water with gold nanoparticles, there is no observable multiple small-scale filaments, but instead a spatially continuous plasma channel is formed. The length of the filament is more than ten times as compared with that in water. Filamentation in AGNC is characterized by a colorful light channel, with generated supercontinuum ranging from 400 nm to 650 nm which is scattered along a cyan-orange path.

摘要

在水性金纳米颗粒胶体（AGNC）中发现了一种新的丝状化机制。与液体中的丝状化不同，在这种机制下，通过在水中掺杂金纳米颗粒，没有观察到多个小规模的细丝，而是形成了一个空间连续的等离子体通道。细丝的长度比在水中的长度长十多倍。AGNC中的丝状化以彩色光通道为特征，产生的超连续谱范围从400纳米到650纳米，沿蓝橙色路径散射。