Scintillation of scattered radiation caused by particulate matter is studied. By use of stochastic theory, expressions for mathematical expectation, variance, and scintillation index are derived. A method of measuring particulate-mass concentration with the scintillation index is proposed. The major advantage of this method is its insensitivity to lens contamination and particle-color change.
© 2000 Optical Society of America
(010.1120) Atmospheric and oceanic optics : Air pollution monitoring
(010.1310) Atmospheric and oceanic optics : Atmospheric scattering
(290.0290) Scattering : Scattering
(290.5850) Scattering : Scattering, particles
Anshi Chen, Jiming Hao, Zhongping Zhou, and Kebin He, "Particulate concentration measured from scattered light fluctuations," Opt. Lett. 25, 689-691 (2000)