Measurement of back-scattering patterns from single laser trapped aerosol particles in air

Yong Le Pan, Chuji Wang, Leonid A. Beresnev, Alex J. Yuffa, Gorden Videen, David Ligon, Joshua L. Santarpia

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We demonstrate a method for measuring elastic back-scattering patterns from single laser trapped micron-sized particles, spanning the scattering angle range of θ = 167.7°-180° and φ = 0°-360° in spherical coordinates. We calibrated the apparatus by capturing light-scattering patterns of 10 μm diameter borosilicate glass microspheres and comparing their scattered intensities with Lorenz-Mie theory. Back-scattering patterns are also presented from a single trapped Johnson grass spore, two attached Johnson grass spores, and a cluster of Johnson grass spores. The method has potential use in characterizing airborne aerosol particles, and may be used to provide back-scattering data for lidar applications.

Original languageEnglish (US)
Pages (from-to)B1-B4
JournalApplied optics
Volume56
Issue number3
DOIs
StatePublished - Jan 20 2017

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grasses
Particles (particulate matter)
spores
Aerosols
aerosols
Scattering
Lasers
air
Air
scattering
lasers
Borosilicate glass
spherical coordinates
Mie scattering
borosilicate glass
Optical radar
Microspheres
optical radar
Light scattering
light scattering

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Cite this

Measurement of back-scattering patterns from single laser trapped aerosol particles in air. / Pan, Yong Le; Wang, Chuji; Beresnev, Leonid A.; Yuffa, Alex J.; Videen, Gorden; Ligon, David; Santarpia, Joshua L.

In: Applied optics, Vol. 56, No. 3, 20.01.2017, p. B1-B4.

Research output: Contribution to journalArticle

Pan, Yong Le ; Wang, Chuji ; Beresnev, Leonid A. ; Yuffa, Alex J. ; Videen, Gorden ; Ligon, David ; Santarpia, Joshua L. / Measurement of back-scattering patterns from single laser trapped aerosol particles in air. In: Applied optics. 2017 ; Vol. 56, No. 3. pp. B1-B4.
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