%0 Journal Article %T Systems of digital optical memory based on two-photon amplitude data writing in three-dimensional photosensitive media with the using femtosecond laser pulses: comparison of phase and amplitude approaches to the problem of 3D optical memory %A Chikishev, Andrey Y. %A Koroteev, Nikolai I. %A Krikunov, Sergei A. %J Proceedings of SPIE %V 3402 %N 1 %P 122-128 %@ 0277-786X %D 1998-04-01 %I SPIE %~ DeepDyve