Cavity-immune spectral features in the pulsed superradiant crossover regime

Lasing in the bad cavity regime has promising applications in precision metrology due to the reduced sensitivity to cavity noise originating from cavity length fluctuations. Here we investigate the spectral properties and phase behavior of pulsed lasing on the ^{1}S_{0}\text{\ensuremath{-}}^{3}P_{1}line of ^{88}\mathrm{Sr}in a mK thermal ensemble, as first described by S. A. Sch\affer et al. [Phys. Rev. A 101, 013819 (2020)]. The system...