Fig. 2
From: Triple threshold lasing from a photonic trap in a Te/Se-based optical microcavity
Electron–hole plasma lasing at room temperature. Micro-photoluminescence spectra at T = 300 K for the increasing non-resonant excitation in linear and logarithmic (see inset) intensity scale. The lasing threshold power density Pth is 450 kW cm−2. The dashed line indicates the approximated spectral position of the maximum
