Photothermal dynamics of micro-glass beads coated with gold nanoparticles in water: Fine bubble generation and fluid-induced laser trapping

被引：4

作者：

Yanagiya, Shin-ichiro ^{[1
]}

Sekimoto, Naoya ^{[1
]}

Furube, Akihiro ^{[1
]}

机构：

[1] Tokushima Univ, Inst Sci & Technol, Tokushima 7708506, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 11期

关键词：

PLASMONIC NANOBUBBLES; RESONANCE; NANORODS; SURFACE; GROWTH;

D O I：

10.7567/JJAP.57.115001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, gold nanoparticles were heterogeneously deposited onto the surfaces of glass beads through a gold ion reduction method to obtain "plasmonic beads". Plasmonic beads in pure water were illuminated with a visible continuous-wave laser through an objective lens. Using a relatively low-power laser, plasmonic beads were optically trapped and aggregated the other beads over an area much greater than the focal point. On the other hand, using a high-power laser (>20 mW/mu m(2)), microbubbles were produced in water. Thus, the plasmonic beads studied herein can act as optically controllable fluid and microbubble generators. (C) 2018 The Japan Society of Applied Physics

引用

页数：5