Hi, for the exciton-photon interaction(Single photon Rabi frequency),I came across literature taking the effective area to be Bohr radius(a_B, whose dimension is nm) whereas the laser is incident over a region of micrometers. So, I couldn't understand how this oscillation in terms of area of exciton instead of area of incident laser was considered for oscillation strength.
Hi, for the exciton-photon interaction(Single photon Rabi frequency),I came across literature taking the effective area to be Bohr radius(a_B, whose dimension is nm) whereas the laser is incident over a region of micrometers. So, I couldn't understand how this oscillation in terms of area of exciton instead of area of incident laser was considered for oscillation strength.