DETERMINATION METHOD OF PHOTOINDUCED DOUBLE-BEAM REFRACTION IN A LIGHT-SENSITIVE FILM

摘要

Usage: This invention relates to optical information processing and may be used in material of thin films, holography, microelectronics. SUMMARY OF THE INVENTION: simultaneously measured variable and constant components passing film nonabsorbent radiation modulated before falling on the film of the polarization with a predetermined frequency between the values ​​of E, C, and E, where C - bath photoinduced direction of the optical axis in the film . Next, using the calculation formula are calculated .velichinu photoinduced dvuluchep- relomleni. 4 yl.