Enhancement of the 1.54 mu m Er3+ emission from quasiperiodic plasmonic arrays

Gopinath A., Boriskina S. V. , Yerci S., Li R., Dal Negro L.

APPLIED PHYSICS LETTERS, vol.96, no.7, 2010 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 96 Issue: 7
  • Publication Date: 2010
  • Doi Number: 10.1063/1.3327827
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Keywords: erbium, nanoparticles, optical arrays, photoluminescence, plasmonics, silicon compounds, EMITTERS, ERBIUM


Periodic and Fibonacci Au nanoparticle arrays of varying interparticle separations were fabricated on light emitting Er:SiNx films using electron beam lithography. A 3.6 times enhancement of the photoluminescence (PL) intensity accompanied by a reduction in the Er3+ emission lifetime at 1.54 mu m has been observed in Fibonacci quasiperiodic arrays and explained with radiating plasmon theory. Our results are further supported by transmission measurements through the Fibonacci and periodic nanoparticle arrays with interparticle separation in the 25-500 nm range. This work demonstrates the potential of quasiperiodic nanoparticle arrays for the engineering of light emitting devices based on the silicon technology.