Storing, retrieving, and processing optical information by Raman backscattering in plasmas.
By employing stimulated Raman backscattering in a plasma, information carried by a laser pulse can be captured in the form of a very slowly propagating plasma wave that persists for a time long compared with the pulse duration. If the plasma is then probed with a short laser pulse, the information stored in the plasma wave can be retrieved in a second scattered electromagnetic wave. The recording and retrieving processes can conserve robustly the pulse shape, thus enabling the recording and retrieving with fidelity of information stored in optical signals.
Dodin
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Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
Fisch
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