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Near-Field Infrared Pump-Probe Imaging of Surface Phonon Coupling in Boron Nitride Nanotubes

Journal Article


Abstract


  • Surface phonon modes are lattice vibrational modes of a solid surface. Two common surface modes, called longitudinal and transverse optical modes, exhibit lattice vibration along or perpendicular to the direction of the wave. We report a two-color, infrared pump-infrared probe technique based on scattering type near-field optical microscopy (s-SNOM) to spatially resolve coupling between surface phonon modes. Spatially varying couplings between the longitudinal optical and surface phonon polariton modes of boron nitride nanotubes are observed, and a simple model is proposed.

Publication Date


  • 2016

Citation


  • Gilburd, L., Xu, X. G., Bando, Y., Golberg, D., & Walker, G. C. (2016). Near-Field Infrared Pump-Probe Imaging of Surface Phonon Coupling in Boron Nitride Nanotubes. Journal of Physical Chemistry Letters, 7(2), 289-294. doi:10.1021/acs.jpclett.5b02438

Scopus Eid


  • 2-s2.0-84955492756

Start Page


  • 289

End Page


  • 294

Volume


  • 7

Issue


  • 2

Place Of Publication


Abstract


  • Surface phonon modes are lattice vibrational modes of a solid surface. Two common surface modes, called longitudinal and transverse optical modes, exhibit lattice vibration along or perpendicular to the direction of the wave. We report a two-color, infrared pump-infrared probe technique based on scattering type near-field optical microscopy (s-SNOM) to spatially resolve coupling between surface phonon modes. Spatially varying couplings between the longitudinal optical and surface phonon polariton modes of boron nitride nanotubes are observed, and a simple model is proposed.

Publication Date


  • 2016

Citation


  • Gilburd, L., Xu, X. G., Bando, Y., Golberg, D., & Walker, G. C. (2016). Near-Field Infrared Pump-Probe Imaging of Surface Phonon Coupling in Boron Nitride Nanotubes. Journal of Physical Chemistry Letters, 7(2), 289-294. doi:10.1021/acs.jpclett.5b02438

Scopus Eid


  • 2-s2.0-84955492756

Start Page


  • 289

End Page


  • 294

Volume


  • 7

Issue


  • 2

Place Of Publication