Effect of Velocity-Changing Gas Particle Collisions on the Temporal Shape of an Object Laser Pulse in Stimulated Echo-Hologram Responses

© 2017, Springer Science+Business Media, LLC. The effect of collisions with changes in the direction of the particle velocities in a gas on the reproduction of information in stimulated echo-hologram responses is examined. Because of these collisions, the frequency shifts of atomic emission in the gas vary randomly (spectral diffusion within an inhomogeneously broadened line). It is shown that this leads to uncorrelated inhomogeneous broadening in the gas at different times and to partial loss of phase memory. This results in partial loss of reproducible information that was coded in the temporal shape of the object laser pulse