Recording long-term optical images of a Brownian particle in a Paul trap essentially free of thermally induced positional noise

S. Arnold, J. H. Li, S. Holler, A. Korn, A. F. Izmailov

Research output: Contribution to journalArticle

Abstract

It is shown that long-term optical images which are essentially free of positional noise may be obtained on a Brownian particle in a Paul trap by accumulating strobed images at a phase at which the variance is minimum. The experimental results offer a new mean for performing high resolution optical microscopy, in which physico-chemical processes may be followed within an individual aerosol particle by imaging the particle in weak fluorescence or Raman scattering. Images previously obtained on considerably larger particles in fluorescence scattering have enabled the determination of the orientation of surfactant chromophores, the absorption spectrum of a bulk molecular impurity, and to elucidate the mechanism for microparticle enhanced energy transfer. With the new ability to obtain clear images at considerably smaller sizes it should be possible to use the modified aerosol particle microscope to view processes for which QED enhancements are thought to be prevalent.

Original languageEnglish (US)
Pages (from-to)3566-3571
Number of pages6
JournalJournal of Applied Physics
Volume78
Issue number6
DOIs
StatePublished - Jan 1 1995

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recording
traps
aerosols
fluorescence
microparticles
scattering
chromophores
energy transfer
surfactants
microscopes
Raman spectra
microscopy
absorption spectra
impurities
augmentation
high resolution

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Recording long-term optical images of a Brownian particle in a Paul trap essentially free of thermally induced positional noise. / Arnold, S.; Li, J. H.; Holler, S.; Korn, A.; Izmailov, A. F.

In: Journal of Applied Physics, Vol. 78, No. 6, 01.01.1995, p. 3566-3571.

Research output: Contribution to journalArticle

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