Abstract

We have observed long-term storage and phase conjugation of multiple images using a backward stimulated echo scheme in the ³H₄—³P₀ transition of Pr³⁺:LaF₃ crystal. The input spatial images are separated by 20-ns time intervals. The temporal order of the multiple-echo images is the reverse of the input images. Each echo image is a phase-conjugate replica of the corresponding input image. The storage lasts up to 15 s. This constitutes, in principle, the first demonstration of an ultrafast holographic movie using stimulated photon echo.

© 1987 Optical Society of America