Coupling of Er light emissions to plasmon modes on In2O 3: Sn nanoparticle sheets in the near-infrared range

Hiroaki Matsui, Wasanthamala Badalawa, Takayuki Hasebe, Shinya Furuta, Wataru Nomura, Takashi Yatsui, Motoichi Ohtsu, Hitoshi Tabata

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Near-infrared Er photoluminescence (PL) is markedly modified using a plasmonic In2O3: Sn nanoparticle (NP) sheet. Modeling and optical measurements reveal the presence of different electric fields (E-field) in the NP sheet. The local E-field excited at the interface between the NP sheet and Er-emitting layer of ZnO contributes significantly towards the spectral modifications of Er PL due to matching with the photon energy of Er PL. We also determine the critical temperature for Er PL modifications, which is related to the energy transfer efficiency between Er transition dipoles in ZnO and the plasmon modes on the NP sheet.

Original languageEnglish
Article number041903
JournalApplied Physics Letters
Volume105
Issue number4
DOIs
Publication statusPublished - Jul 28 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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