Verkhoturov V.I., Grafodatskij O.S., Zhukov V.K., Ekimenko V.Yu., Kargapol'tsev A.V., Rudenko V.N., Simanchuk V.I. «Installation for acoustic sounding of electric fields in dielectric materials» Приборы и техника эксперимента, 34, № 2, с. 186-190 (1991)

The installation was described permitting to study accumulation and relaxation processes of space change and electric field connected with it. The spatial resolution of the installation when using OGM-20 laser was ≈100 μm for polymethylmethacrylate samples. The spatial resolution can be reached to several micrometers due to nanosecond LP-3 lasers, providing the formation in solid state media of acoustic signals of the length up to several nanoseconds and below. In connection with it the investigation of thin (tens-hundreds micrometers) dielectric and polymer films is possible.