Polarization-Dependent Lasing Behavior from Low-Symmetry Nanocavity Arrays

Michael P. Knudson, Ran Li, Danqing Wang, Weijia Wang, Richard D Schaller, Teri W Odom

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper reports how geometric effects in low-symmetry plasmonic nanoparticle arrays can produce polarization-dependent lasing responses. We developed a scalable fabrication procedure to pattern rhombohedral arrays of aluminum anisotropic nanoparticles that support lattice plasmon modes from both first-order and second-order diffraction coupling. We found that nanoparticle shape can be used to engineer the spatial overlap between electromagnetic hot spots of different lattice modes and dye gain to support plasmonic lasing. The lasing behavior revealed that plasmon-exciton energy transfer depends on polarization, with stronger coupling and faster dynamics when the transition dipole moments of the excited gain are aligned with the electric field of the plasmon modes.

Original languageEnglish
Pages (from-to)7435-7441
Number of pages7
JournalACS nano
Volume13
Issue number7
DOIs
Publication statusPublished - Jul 23 2019

Fingerprint

lasing
Polarization
Nanoparticles
nanoparticles
symmetry
polarization
Dipole moment
Aluminum
Excitons
Energy transfer
engineers
dipole moments
Coloring Agents
Dyes
Diffraction
dyes
energy transfer
Electric fields
excitons
electromagnetism

Keywords

  • Aluminum plasmonics
  • Anisotropic nanoparticles
  • Lasing
  • Lattice plasmons
  • Polarization
  • Symmetry

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Polarization-Dependent Lasing Behavior from Low-Symmetry Nanocavity Arrays. / Knudson, Michael P.; Li, Ran; Wang, Danqing; Wang, Weijia; Schaller, Richard D; Odom, Teri W.

In: ACS nano, Vol. 13, No. 7, 23.07.2019, p. 7435-7441.

Research output: Contribution to journalArticle

Knudson, Michael P. ; Li, Ran ; Wang, Danqing ; Wang, Weijia ; Schaller, Richard D ; Odom, Teri W. / Polarization-Dependent Lasing Behavior from Low-Symmetry Nanocavity Arrays. In: ACS nano. 2019 ; Vol. 13, No. 7. pp. 7435-7441.
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