Lasing Emission from Plasmonic Nanodome Arrays

Hsin Yu Wu, Longju Liu, Meng Lu, Brian T. Cunningham

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Plasmonic nano-dome arrays (PNDA) have been previously studied as chemical and biological sensors. The present study reports large-area plasmonic lasing from the PNDA structures with liquid-phase gain materials to provide optical gain. The PDNA structure consists of a 2D array of nanoposts, fabricated inexpensively using a nanoreplica molding process, with silicon dioxide and gold thin-film coatings to produce the dome-shaped surface profile. Covered with a dye-doped solution, the PDNA structures can generate lasing emission when they are optically pumped above the lasing threshold. The lasing emission is enabled by energy coupling from the photoexcited dye molecules to the hybridized plasmon mode supported by the PDNA oscillator. Two PDNA lasers with array periods of 400 and 450 nm are fabricated and characterized. Plasmonic resonant modes of the PDNA lasers are numerically studied to illustrate the underlying lasing mechanism. The emission characteristics, including lasing wavelength, linewidth, threshold, beam divergence, and radiation angle, are presented in the paper. The PNDA laser represents a new path for plasmonic lasing in the near-infrared region with potential applications that include integrated photonic circuits, optical communications, and high-performance biosensors.

Original languageEnglish
Pages (from-to)708-714
Number of pages7
JournalAdvanced Optical Materials
Volume4
Issue number5
DOIs
Publication statusPublished - May 1 2016
Externally publishedYes

Fingerprint

Domes
lasing
domes
Lasers
Coloring Agents
Dyes
Optical gain
Optical communication
Laser modes
Biosensors
Molding
Silicon Dioxide
Gold
Linewidth
Photonics
dyes
Silica
thresholds
Infrared radiation
laser arrays

Keywords

  • Laser arrays
  • Nanolasers
  • Nanostructures
  • Plasmonics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Wu, H. Y., Liu, L., Lu, M., & Cunningham, B. T. (2016). Lasing Emission from Plasmonic Nanodome Arrays. Advanced Optical Materials, 4(5), 708-714. https://doi.org/10.1002/adom.201500669

Lasing Emission from Plasmonic Nanodome Arrays. / Wu, Hsin Yu; Liu, Longju; Lu, Meng; Cunningham, Brian T.

In: Advanced Optical Materials, Vol. 4, No. 5, 01.05.2016, p. 708-714.

Research output: Contribution to journalArticle

Wu, HY, Liu, L, Lu, M & Cunningham, BT 2016, 'Lasing Emission from Plasmonic Nanodome Arrays', Advanced Optical Materials, vol. 4, no. 5, pp. 708-714. https://doi.org/10.1002/adom.201500669
Wu, Hsin Yu ; Liu, Longju ; Lu, Meng ; Cunningham, Brian T. / Lasing Emission from Plasmonic Nanodome Arrays. In: Advanced Optical Materials. 2016 ; Vol. 4, No. 5. pp. 708-714.
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