Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 126, Issue 17, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2723736
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Funding
- EPSRC [EP/E018297/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E018297/1] Funding Source: researchfish
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The authors present an analytical derivation of the scattered power from a spherical, homogeneous, nonabsorbing particle in a plane standing wave. The scattered power changes significantly with the position of the particle with respect to the peaks and nodes of the standing wave, even for particles whose diameters are many times the wavelength of the light. The analysis is applicable to continuous-wave cavity ring-down spectroscopy on aerosol particles, and the structure of the standing wave is expected to affect both the measured ring-down time and the shape of the ring-down trace. The dependence of the extinction on the phase of the standing wave at the location of the particle is captured in a parameter zeta which connects the current treatment to standard Mie scattering theory. Methods for calculating zeta are presented. (C) 2007 American Institute of Physics.
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