4.5 Article

Interaction between plasmonic silver nanorod arrays and nanosecond pulsed laser

Journal

PHYSICA B-CONDENSED MATTER
Volume 607, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.physb.2020.412573

Keywords

Laser interference patterning; Metamaterials; Plasmonics; Annealing

Funding

  1. China Postdoctoral Science Foundation [2018M630081]
  2. Equal Opportunity Council of the University of Konstanz
  3. Brown Family Internship Grant

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The study on the interaction mechanism between plasmonic metamaterials and lasers shows that nanosecond laser pulses significantly improve the crystallinity of silver nanorod arrays and evaporate some of the silver into the air. These findings pave the way for future high-performance plasmonic meta-devices.
Plasmonic metamaterials have recently received increasing attention due to their favorable optical and electrical properties. The physics of the interaction between plasmonic metamaterials and lasers are rich and open opportunities for applications, such as sensing, imaging and photovoltaics. Here, we investigate the mechanism of the interaction between Ag nanorod arrays and nanosecond (ns) pulsed laser. The experimental results show that ns laser pulses significantly improve the crystallinity of the Ag nanorod arrays. Meanwhile, the laser evaporates some of the Ag into the air. This work paves the way for future high-performance plasmonic meta-devices.

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