Abstract
We intend to demonstrate the contribution of ultra short laser light methods for improving the particle sizing of dense scattering medium like plumes or engine sprays. We especially focus our attention on the time-resolved propagation of ultra short laser pulses in the forward and backward directions considering a Monte-Carlo (MC) scheme. We investigate the influence of the detector-source configurations on the retrieval of spectral backscattering and extinction coefficients derived from the measurements of the spectral transmittance and backscattering power. An efficient method developed to retrieve Particle Size Distribution of aerosols from multi-spectral LIDAR returns is then adapted to the investigated case. This method is finally tested on the numerical spectral backscattering and extinction coefficients derived from MC simulations.
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