One-Dimensional Plasmonic Nanoparticle Chain Lasers

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2018-05-16

Department

Department of Applied Physics

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Language

en

Pages

5

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ACS Photonics, Volume 5, issue 5, pp. 1822-1826

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.

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Keywords

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

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DOI

10.1021/acsphotonics.8b00001

Citation

Rekola, H T, Hakala, T K & Törmä, P 2018, ' One-Dimensional Plasmonic Nanoparticle Chain Lasers ', ACS Photonics, vol. 5, no. 5, pp. 1822-1826 . https://doi.org/10.1021/acsphotonics.8b00001

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https://urn.fi/URN:NBN:fi:aalto-202001021100

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[article-cris] Perustieteiden korkeakoulu / SCI