Broad Bandwidth Lidar for Standoff Bioaerosol Size Distribution

摘要

We are examining the possibility of using a broad bandwidth lidar system to estimate size distributions of aerosol clouds that may possess respirable biological particles. An optical parametric oscillator has been specially designed and fabricated for broad bandwidth operation in the 1.4 to 1.8 micrometer spectral region. We have determined the spectral bandwidth, output, and pumping power characteristics of this device as a potential lidar source. We have developed a Monte Carlo technique to analyze backscattering data that would result from our hyperspectral lidar. Lidar simulation results show good estimates of size distributions for respirable size aerosols.