Plasmonic Nanoantennas for Broad-Band Enhancement of Two-Photon Emission from Semiconductors

Amir Nevet*, Nikolai Berkovitch, Alex Hayat, Pavel Ginzburg, Shai Ginzach, Ofir Sorias, Meir Orenstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)

Abstract

We demonstrate experimentally and theoretically a broad-band enhancement of the spontaneous two-photon emission from AlGaAs at room temperature by plasmonic nanoantenna arrays fabricated on the semiconductor surface. Plasmonic structures with inherently low quality factors but very small effective volumes are shown to be optimal. A 20-fold enhancement was achieved for the entire antenna array, corresponding to an enhancement of nearly 3 orders of magnitude for charge carriers emitting at the near field of a plasmonic antenna.

Original languageEnglish
Pages (from-to)1848-1852
Number of pages5
JournalNano Letters
Volume10
Issue number5
DOIs
Publication statusPublished - May 2010

Keywords

  • FIELD ENHANCEMENT
  • plasmonic enhancement
  • Semiconductors
  • SHAPE
  • two-photon emission
  • nanoparticles
  • OPTICS

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