Research area – optics.
Purpose. An automatic polarimeter of the whole image field can be used to measure the parameters of the optical anisotropy of transparent non-depolarizing spatially inhomogeneous objects and systems in the form of a Jones matrix.
Area. Optical-physical measurements, namely, non-destructive testing of residual technological stresses in optical elements by the distribution of the phase difference and the orientation of the optical indicatrix.
Permissible absolute error when measuring the orientation of the indicatrix (depending on the value of the phase difference):
~ 1 hail (30-160 hail)
~ 5 hail (5-30 hail and 160-175 hail)
2) permissible absolute error in determining the phase difference (depending on the value of the phase difference):
~ 3 degree (30-160 degree)
~ 5 degree (10-30 degree and 160-170 degree)
~ 10 degree (5-10 degree and 170-175 degree)
3) power consumption, no more than 100 W;
4) overall dimensions 690x760x170mm.
Description. The image polarimeter contains a radiation source in the form of a gas laser, a beam expander, a polarizer, a test sample, an analyzer, a two-dimensional photodetector, a computer, a rotary device for a radiation intensity regulator, a linear polarizer, a quarter-wave plate, a coherence mixer.
Advantages: An original polarimetric technique was applied, which made it possible to realize an analogue of the zero polarimeter for the multibeam case. This makes it possible to use a serial household CCD camera as a photodetector instead of special CCDs for scientific purposes, which significantly reduces the cost of the polarimeter.
Novelty. 1 patent of Ukraine.
Readiness. Introduced into production.
Cooperation. Sales of finished products.