Tip-enhanced Raman spectroscopy of CNTs in a picocavity

ORAL

Abstract

Carbon nanotubes (CNTs) have optical and electronic properties which allow promising applications. Conventional atomic force microscopy (AFM) and tip-enhanced Raman scattering (TERS) provide topographic and chemically specific images that reveal nanoscale structure-functional relationships. By placing CNTs in a picocavity formed by a plasmonic scanning probe tip and a metallic surface we control the relative intensities of various CNT signals. We investigate the tip-sample distance dependence in the nanometer classical and sub-nanometer quantum plasmonic regimes. This quantum picophotonics approach provides a new platform for exploration of enhanced properties of low dimensional materials.

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Presenters

  • Kai Nan

    Physics department, University of South Florida

Authors

  • Kai Nan

    Physics department, University of South Florida

  • Sharad Ambardar

    University of South Florida, Physics department, University of South Florida

  • Dmitri Voronine

    University of South Florida, Physics department, University of South Florida