The interaction of a short high power pulse at the electron plasma frequency (f = 9 GHz, τ = .5 ¿s, P < 70 kW) and a magnetized plasma (n0 ≤ 1.25 ¿ 1012 cm-3, B0 = 1.0 - 2.5 kG, Helium) capable of supporting Alfv¿n waves has been studied. The interaction leads to the generation of inertial shear Alfv¿n waves. The Alfv¿n waves are centered in an azimuthal layer corresponding to the location of the plasma frequency cutoff. The Alfv¿n waves are monochromatic with frequency within 10% of the ion cyclotron frequency. Spatial patterns of the wave were measured at different axial and radial locations.