TY - JOUR
T1 - Relic crystal-lattice effects on Raman compression of powerful X-ray pulses in plasmas
AU - Malkin, V. M.
AU - Fisch, N. J.
PY - 2007/11/12
Y1 - 2007/11/12
N2 - Powerful x-ray pulses might be compressed to even greater powers by means of backward Raman amplification in ultradense plasmas produced by ionizing condensed matter by the same pulses. The pulse durations contemplated are shorter than the time for complete smoothing of the crystal lattice by thermal motion of ions. Although inhomogeneities are generally thought to be deleterious to the Raman amplification, the relic lattice might, in fact, be useful for the Raman amplification. The x-ray frequency band gaps can suppress parasitic Raman scattering of amplified pulses, while enhanced dispersion of the x-ray group velocity near the gaps can delay self-phase-modulation instability, thereby enabling further amplification of the x rays.
AB - Powerful x-ray pulses might be compressed to even greater powers by means of backward Raman amplification in ultradense plasmas produced by ionizing condensed matter by the same pulses. The pulse durations contemplated are shorter than the time for complete smoothing of the crystal lattice by thermal motion of ions. Although inhomogeneities are generally thought to be deleterious to the Raman amplification, the relic lattice might, in fact, be useful for the Raman amplification. The x-ray frequency band gaps can suppress parasitic Raman scattering of amplified pulses, while enhanced dispersion of the x-ray group velocity near the gaps can delay self-phase-modulation instability, thereby enabling further amplification of the x rays.
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U2 - 10.1103/PhysRevLett.99.205001
DO - 10.1103/PhysRevLett.99.205001
M3 - Article
C2 - 18233147
AN - SCOPUS:36249009802
SN - 0031-9007
VL - 99
JO - Physical review letters
JF - Physical review letters
IS - 20
M1 - 205001
ER -