RECORDING OF INTERFERENCE OF FEMTOSECOND LASER-PULSES PROPAGATING IN THE OPPOSITE DIRECTIONS

The experiments were done on the laser equipment, consisted of a ring dye oscillator with pumping by Ar laser. The pulse duration was of the order of 100 fs. Two beams were directed on the recording media from the opposite sides of the plate, so that pulses crossed exactly inside a photolayer. We have constructed a method for making optical paths o f beams equal with accuracy of 5 mu m. We used for recording special m aterials with the increased thickness of a photolayer mounted to 250 m u m. Recorded interference structure reconstructed diffraction image.