Higher-order photon correlations in pulsed photonic crystal nanolasers

Abstract

We report on the higher-order photon correlations of a high-$\\beta$ nanolaser\nunder pulsed excitation at room temperature. Using a multiplexed four-element\nsuperconducting single photon detector we measured g$^{(n)}(\\vec{0})$ with\n$n$=2,3,4. All orders of correlation display partially chaotic statistics, even\nat four times the threshold excitation power. We show that this departure from\ncoherence and Poisson statistics is due to the quantum fluctuations associated\nwith the small number of dipoles and photons involved in the lasing process.\n