Abstract
Backward Raman amplification of a short laser pulse in a plasma waveguide is demonstrated. With a guided seed pulse of 0.8-μJ energy and a pump pulse of 345-mJ energy in a 9-mm-long optically preformed plasma waveguide, 910-fold energy amplification is achieved. Heating of the plasma by the long pump pulse is identified to be a key issue for plasma-waveguide-based backward Raman amplifiers.
Original language | English |
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Article number | 065005 |
Journal | Physical Review Letters |
Volume | 101 |
Issue number | 6 |
DOIs | |
State | Published - 8 Aug 2008 |