Physical and chemical study of single aerosol particles using optical trapping cavity ringdown spectroscopy

Abstract

We report a new single-aerosol particle scope using an optical trapping-cavity ringdown spectroscopy (OT-CRDS) technique. The scope can not only view physical parameters such as size, motion, restoring force constant of a single aerosol particle trapped in air, but also display time-, particle-, or wavelength-resolved chemical properties such as single aerosol particle extinction. We demonstrate the scope by trapping and walking single carbon-nanotube particles of approx.50 micrometers m in size and viewing those properties via changes of ringdown time. This single-aerosol particle scope offers a new, powerful tool to study both physical and chemical properties as well as their evolving dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 2016
Accession Number
AD1037540

Entities

People

  • Chuji Wang
  • Yong-Le Pan
  • Zhiyong Gong

Organizations

  • Brookhaven National Laboratory
  • Mississippi State University
  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Carbon Nanotubes
  • Chemical Properties
  • Chemistry
  • Department Of Defense
  • Dye Lasers
  • Fullerenes
  • Fungi
  • Laser Beams
  • Laser Spectroscopy
  • Lasers
  • Materials
  • Measurement
  • Optical Lattices
  • Optical Properties
  • Optics
  • Paper
  • Particle Size
  • Scattering
  • Spectroscopy
  • Students
  • Surface Chemistry
  • Surface Properties

Fields of Study

  • Physics

Readers

  • Nanocomposite Materials Science
  • Optical Physics and Photonics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.