Characterization of Sierpinski carpet optical antenna at visible and near-infrared wavelengths

Ting Lee Chen, Dirk Jan Dikken, Jord C. Prangsma, Frans Segerink, Jennifer L. Herek

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
60 Downloads (Pure)

Abstract

We present fabrication, characterization, and simulation results on an optical antenna inspired by the Sierpinski carpet fractal geometry for operation in the visible and near-infrared wavelength regions. Measurements and simulations of the far-field scattering efficiency indicate a broadband optical response. Two-photon photoluminescence images provide maps of the near-field intensity distribution, from which we extract an enhancement factor of ~70. To explore the effect of morphology on the optical response of a large assembly of particles, we also present results on an arbitrarily chosen pseudo-random configuration as well as a periodic array.
Original languageEnglish
Article number093024
Number of pages13
JournalNew journal of physics
Volume16
DOIs
Publication statusPublished - 2014

Keywords

  • METIS-306411
  • IR-94960

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