Photon Number Squeezing Enhanced by Multi-Photon Absorption in Microcavity

Abstract

We demonstrate that m-photon resonant absorption (m=2, 3, … ) in a microcavity produce strong photon number squeezing. The dependence of the Fano factor and the mean photon number on the pumping rate, linear damping rate and m-photon decay rate is investigated analytically and numerically. We show the existence of a lower limit equaling 50\for the radiation field within the cavity in both transient and steady-state cases. This photon-number squeezing is robust against pumping and one-photon dissipation processes.