One-Dimensional Plasmonic Nanoparticle Chain Lasers

Heikki T. Rekola*, Tommi K. Hakala, Päivi Törmä

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)
93 Downloads (Pure)

Abstract

Controlling and generating coherent light fields in the nanoscale is critical for reducing the size of photonic circuitry. There are several demonstrations of zero-, one-, two-, and three-dimensional nanolaser architectures. Here we experimentally demonstrate a one-dimensional plasmonic laser, which consists of a periodic chain of aluminum nanoparticles and organic gain media. Lasing is observed at visible wavelengths, with clear thresholds and line widths down to 0.11 nm. Lasing occurs in a dark mode that extends over the whole structure, even outside the pumped area. The single lithography step fabrication and one-dimensional character allow for easy integration of these laser sources with other plasmonic structures.

Original languageEnglish
Pages (from-to)1822-1826
Number of pages5
JournalACS Photonics
Volume5
Issue number5
DOIs
Publication statusPublished - 16 May 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • aluminum nanoparticles
  • nanolasers
  • plasmonic crystals
  • plasmonics
  • surface lattice resonances

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