Nano-sensing of the orientation of fluorescing molecules with active coated nano-particles

Samel Arslanagic, Richard W. Ziolkowski

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The potential of using active coated nano-particles to determine the orientation of fluorescing molecules is reported. By treating each fluorescing molecule as an electric Hertzian dipole, single and multiple fluorescing molecules emitting coherently and incoherently in various orientations are considered in the presence of active coated nano-particles. It is demonstrated that in addition to offering a means to determine the orientation of a single molecule or the over-all orientation of the molecules surrounding it, the nature of the far-field response from the active coated nano-particles provides insight into the degree of phase coherence between emitters in specific molecular environments.
Original languageEnglish
JournalPhotonics and Nanostructures - Fundamentals and Applications
Volume13
Pages (from-to)80-88
Number of pages9
ISSN1569-4410
DOIs
Publication statusPublished - 2015

Keywords

  • Gain
  • Light radiation and scattering
  • Molecules
  • Nano-particles
  • Plasmons
  • Resonances
  • Molecular orientation
  • Resonance
  • Far-field
  • Hertzian dipole
  • Light radiation
  • Molecular environment
  • Phase coherence
  • Single molecule
  • Nanoparticles

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