  We measure radio-frequency spectra for a two-component mixture of a $^6$Li
atomic Fermi gas in the quasi-two-dimensional regime. Near the Feshbach
resonance, where the transverse Fermi energy is large compared to the
confinement-induced dimer binding energies for the initial and final states, we
find that the observed resonances do not correspond to transitions between
confinement-induced dimers. The spectrum appears to be well-described by
transitions between noninteracting polaron states in two dimensions.
