Optical modes excited by evanescent-wave-coupled PbS nanocrystals in semiconductor microtube bottle resonators

Nano Lett. 2010 Feb 10;10(2):627-31. doi: 10.1021/nl9036966.

Abstract

We report on optical modes in rolled-up microtube resonators that are excited by PbS nanocrystals filled into the microtube core. Long ranging evanescent fields into the very thin walled microtubes cause strong emission of the nanocrystals into the resonator modes and a mode shift after a self-removal of the solvent. We present a method to precisely control the number, the energy and the localization of the modes along the microtube axis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Equipment Design
  • Lead / chemistry*
  • Materials Testing
  • Nanoparticles / chemistry*
  • Nanotechnology / methods*
  • Optics and Photonics
  • Semiconductors*
  • Solvents / chemistry
  • Sulfides / chemistry*

Substances

  • Solvents
  • Sulfides
  • lead sulfide
  • Lead