PERFORMANCE OF SEMICONDUCTOR PLANAR MICROCAVITIES FOR RAMAN-SCATTERING ENHANCEMENT

We report single and double optical resonant Raman scattering in both complete (high-Q) and without top Bragg reflector (low-Q) semiconducto r planar microcavities. A calculation of the Raman efficiency relative amplifying capabilities of these photonic structures is presented, an d compared with the experiments. These results indicate that a competi tion between better light confinement and reduced angular acceptance a s the cavity finesse is increased determines the performance of a cavi ty for enhanced Raman signals.