This paper reports on an experimental study which was carried out to evaluate the performance of thermally induced polarization distortions of the contrast ratio of an electro-optical shutter. Thermal stabilization of electro-optic crystals in shutter is used for reducing thermo-optic effects influents for contrast ratio for strobing the lidar signal.
In paper the device – set of hardware and software for non-contact investigation of marine particles is presented. The device is designed on digital holography principles. Hardware features of submersible holocamera (or DHC sensor) are considered. Methods are described for the processing of holograms and retrieve information. Results of approbation of the device are presented.
Results of observation of the dynamics of evolution and decay of an aircraft condensation jet are described. Polarization lidar is used to determine the upper and lower boundaries of the aerosol layer, its optical thickness, scattering ratio, and backscattering phase matrix.
The paper reports the results of strobing the lidar signal by an electro-optical shutter (EOS). The authors discuss the possibility to reduce the backscattered signal power in the near field up to 10-12 times, to increase the probe pulse energy by an order of magnitude, and thereby to improve the signal-to-noise ratio in atmospheric sensing in the daytime.