Resolving the space-time structure of sonoluminescence by intensity interferometry

We analyze the spatial and temporal resolving power of two-photon intensity interferometry for the light emitting source in single bubble sonoluminescence (SBSL). We show that bubble sizes between several 10 nm and 3 $\mu \mathrm{m}$ can be resolved by measuring the transverse correlation function, but that a direct determination of the flash duration via the longitudinal correlation function works only for SBSL pulses that are shorter than 0.1 ps. Larger pulse lengths can be determined indirectly from the intercept of the angular correlator at equal photon frequencies. The dynamics of the bubble is not accessible by two-photon interferometry.