Fig. 2: Magnetic field-dependence of emissions from bright and dark-exciton Rydberg states.
From: Rydberg series of dark excitons and the conduction band spin-orbit splitting in monolayer WSe2
Low-temperature photoluminescence (PL) spectra in arbitrary (arb.) units measured at selected in-plane magnetic fields in the energy region of both a ground and b excited states. Spectra were shifted for clarity and normalized to the 1sB feature in the lower energy region and to the 2sB feature in the higher-energy region. Note that the intensity scales differ for these two regions. The inset schematically shows the backscattering geometry used in the experiment, where the excitation and the collected light beams are quasi-perpendicular to the sample surface.
