The Laboratory Atmospheric Simulator for Aerosols Photochemistry Experiments and Multispectral Measurements (LASAPEMM)

The LASAPEMM is an experimental technique and methodology developed and produced by SimulTek Research Co. Ltd. to allow research of the physicochemical properties of atmospheric aerosols, including aerosol and atmospheric (photo)-chemistry. The LASAPEMM scientific platform will assist on atmospheric research and weather forecast, to provide clients the solution for air pollution prevention and the short-time weather forecast service. Presently, the LASAPEMM scientific platform consists of two Atmospheric Simulation Chambers (ASC), each ASC simulating the stratified atmospheric environment, and new ASC chambers can be added to the LASAPEMM in the future. To study secondary photochemical reactions that occur between chemical molecules and aerosols in the ASC chambers under simulated solar UV radiation, the LASAPEMM system allows detecting a signal passing through the ASC chambers by using an external light source (a 785 nm fibre-coupled diode laser), when radiation from this source goes multiple times through the controllable atmospheric environment in the ASC chamber. An infrared analytical pathway comprising a Fourier Transform Infra-Red spectrometer (such as Bruker Tensor 37 FT-IR spectrometer, not supplied in this stage of the project) also can be added to the system to allow for trace gas measurements.