Engineering Symmetry-Breaking Nanocrescent Arrays for Nanolasing

Yuanhai Lin, Danqing Wang, Jingtian Hu, Jianxi Liu, Weijia Wang, Jun Guan, Richard D Schaller, Teri W Odom

Research output: Contribution to journalArticle

Abstract

This paper describes a symmetry-breaking plasmonic lattice structure that can support narrow resonances as optical feedback for nanolasing. A scalable technique is developed to fabricate nanocrescent arrays with low-structural symmetry unit cells to achieve in-plane quadrupolar lattice plasmon modes. These lattice plasmons with extremely narrow linewidths preserve nonzero net dipole moments under normal excitation. Ultrafast band-edge lasing can be switched on and off by changing the polarization of the incident pump light. The quadrupolar lattice plasmon lasing process is simulated with a semi-quantum model and the sharp tips on the nanocrescents accelerate the lasing buildup process and enhance stimulated emission.

Original languageEnglish
Article number1904157
JournalAdvanced Functional Materials
DOIs
Publication statusAccepted/In press - Jan 1 2019

Fingerprint

Crystal lattices
broken symmetry
engineering
lasing
Optical feedback
Stimulated emission
Plasmons
Dipole moment
Crystal symmetry
Linewidth
Pumps
Polarization
stimulated emission
plasmons
dipole moments
pumps
symmetry
polarization
cells
excitation

Keywords

  • plasmon lasing
  • plasmonic nanocrescents
  • quadrupolar lattice plasmons
  • symmetry breaking
  • tip effects

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry

Cite this

Engineering Symmetry-Breaking Nanocrescent Arrays for Nanolasing. / Lin, Yuanhai; Wang, Danqing; Hu, Jingtian; Liu, Jianxi; Wang, Weijia; Guan, Jun; Schaller, Richard D; Odom, Teri W.

In: Advanced Functional Materials, 01.01.2019.

Research output: Contribution to journalArticle

Lin, Yuanhai ; Wang, Danqing ; Hu, Jingtian ; Liu, Jianxi ; Wang, Weijia ; Guan, Jun ; Schaller, Richard D ; Odom, Teri W. / Engineering Symmetry-Breaking Nanocrescent Arrays for Nanolasing. In: Advanced Functional Materials. 2019.
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