Ultrafast Modulation of Thermoplasmonic Nanobubbles in Water
| Autor: | Daniel Andrén, Tomasz J. Antosiewicz, Steven Jones, Mikael Käll |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Microfluidics Bubble nucleation Bioengineering 02 engineering and technology General Chemistry Physics::Classical Physics 021001 nanoscience & nanotechnology Condensed Matter Physics Computer Science::Other Active matter Physics::Fluid Dynamics Modulation Optoelectronics General Materials Science 0210 nano-technology business Ultrashort pulse |
| Zdroj: | Nano Letters. 19:8294-8302 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/acs.nanolett.9b03895 |
| Popis: | Thermo-optically generated bubbles in water provide a powerful means for active matter control in microfluidic environments. These bubbles are often formed via continuous-wave illumination of an absorbing medium resulting in bubble nucleation via vaporization of water and subsequent bubble growth from the inward diffusion of gas molecules. However, to date, such bubbles tend to be several microns in diameter, resulting in slow dissipation. This limits the dynamic rate, spatial precision, and throughput of operation in any application. Here we show that isolated plasmonic structures can be utilized as highly localized heating elements to generate thermoplasmonic nanobubbles that can be modulated at frequencies up to several kilohertz in water, orders of magnitude faster than previously demonstrated for microbubbles. The nanobubbles are envisioned as advantageous localized active manipulation elements for high throughput microfluidic applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|