  We consider backscattering of laser pulses in strongly-magnetized plasma
mediated by kinetic magnetohydrodynamic waves. Magnetized low-frequency
scattering, which can occur when the external magnetic field is neither
perpendicular nor parallel to the laser propagation direction, provides an
instability growth rate higher than Raman scattering and a frequency downshift
comparable to Brillouin scattering. In addition to the high growth rate, which
allows smaller plasmas, and the 0.1-2\% frequency downshift, which permits a
wide range of pump sources, MLF scattering is an ideal candidate for
amplification because the process supports an extremely large bandwidth, which
particle-in-cell simulations show produces ultrashort durations. Under some
conditions, MLF scattering also becomes the dominant spontaneous backscatter
instability, with implications for magnetized laser-confinement experiments.
