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Plasmonic enhancement of emission from Si-nanocrystals

Appl. Phys. Lett. 94, 013106 (2009); doi:10.1063/1.3055602

Published 8 January 2009

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Yiyang Gong, Jesse Lu, Szu-Lin Cheng, Yoshio Nishi, and Jelena Vučković
Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA
Plasmonic gratings of different periodicities are fabricated on top of silicon nanocrystals embedded in silicon dioxide. Total enhancements of up to 2 were observed, which matches the value from simulations. Plasmonic enhancements are observed for the first three orders of the plasmonic modes, with the peak enhancement wavelength varying with the periodicity. Biharmonic gratings are also fabricated to extract the enhanced emission from the first order plasmonic mode, resulting in enhancements with quality factors of up to 16. ©2009 American Institute of Physics
History: Received 27 October 2008; accepted 1 December 2008; published 8 January 2009
Permalink: http://link.aip.org/link/?APPLAB/94/013106/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.70.Qs
    Photonic bandgap materials
  • 42.79.Dj
    Gratings
  • 42.82.-m
    Integrated optics
  • 73.20.Mf
    Collective excitations (surface/interface states)
  • 73.22.Lp
    Collective excitations (nanoscale materials)
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (17)
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