K. Kajimura, K. Fossheim, et al.
Physical Review Letters
It is shown that backward-wave photon echoes may be generated and the echo wave fronts are time reversed with respect to the first pulse of either a two- or three-pulse input sequence. Some comparisons are made with the four-wave degenerate parametric technique for generating time-reversed wave fronts.
K. Kajimura, K. Fossheim, et al.
Physical Review Letters
N.S. Shiren
Physical Review
N.S. Shiren, R.L. Melcher, et al.
IEEE JQE
E.L. Hahn, N.S. Shiren, et al.
Physics Letters A