Lasing of moire trapped MoSe₂/WSe₂ interlayer excitons coupled to a nanocavity.

ABSTRACT: We report lasing of moiré trapped interlayer excitons (IXs) by integrating a pristine hBN-encapsulated MoSe₂/WSe₂ heterobilayer into a high-Q (>10⁴) nanophotonic cavity. We control the cavity-IX detuning using a magnetic field and measure their dipolar coupling strength to be 78 ± 4 micro-electron volts, fully consistent with the 82 micro-electron volts predicted by theory. The emission from the cavity mode shows clear threshold-like behavior as the transition is tuned into resonance with the cavity. We observe a superlinear power dependence accompanied by a narrowing of the linewidth as the distinct features of lasing. The onset and prominence of these threshold-like behaviors are pronounced at resonance while weak off-resonance. Our results show th

SUBMITTER: Qian C 

PROVIDER: S-EPMC10780878 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature