Direct Measurement of Complex Index of Aerosol by Multi-wavelength Laser Interferometer

Complex index of Aerosol is an important parameter in environment protection and climate change. Aerosol scattering and absorption both strictly depend on complex index of aerosol, Aerosol complex index not only decide the atmospheric temperature headed or been cool, but also have an effect of budget of earth and atmospheric radiation. A new method, which uses multi-wavelength laser interferometer, is proposed. This method is quietly different the others which obtained complex index by scattering measurement. Laser cross through aerosol can produce extinction and phase delay, using interferometer phase delay and extinction can be measured. Complex index of aerosol is obtained from extinction and phase delay by inversion with generic algorithm. Simulation and analysis give a primary glue of feasibility. Further research would be developed.<br />
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