Applied Physics Letters
Storage and time reversal of femtosecond light signals via persistent spectral hole burning holography
Alexander Rebane, Jaak Aaviksoo, J. Kühl
Abstract
Time and space domain holography by persistent spectral hole burning in photochemically active media is shown to permit storage, recall, and conjugation of temporal profiles of light signals as short as 100 fs. This limit for the temporal resolution is set by the finite spectral width of the impurity absorption bands of presently available recording materials.